Fowlmouth was thrown out of Shirley's house.

"And, like, don't come back until you fix that foul mouth of yours!" Shirley yelled, slamming the door.

Fowlmouth was dazed as he stood back up.

"Man, the day I (bleep-bleep) get a date with Shirls, I (bleep-Bleep) blow it like this." He sighed. "Maybe Buster could help me."

The blue rabbit Fowlmouth mentioned bursted through the ground.

"Page me, Fowlmouth?" Buster asked.

"Hey Buster, I don't know what to (bleep-bleep) do." Fowlmouth replied. "I finally got a date with Shirls, and she kicks me out because of my (bleep-bleep) cussin'."

"Hmm, seeing as there can't be little kids with your and Shirley, I have another idea." Buster informed.

Buster reached into the hole he came out of, and pulled out a jar with a coin slot on top. The jar read "Fowlmouth's Swear Jar" that was written on a sticky note attached to the jar.

"Here ya go." Buster said, handing Fowlmouth the jar.

"What's this?" Fowlmouth asked.

"It's your new swear jar." Buster informed. "Every time you cuss, you have to put money in the jar."

"That's (bleep-bleep) genius!" Fowlmouth happily replied.

"Ah, ah, ah." Buster scolded wagging his finger. "You cussed, so put a dollar in the jar."

Fowlmouth took out a dollar from his pocket (don't question it; it's toon/story logic), and put it in the jar.

"Alright Fowlmouth, so go on with your day." Buster said. "And remember: every time you cuss, you have to put money in the jar."

Buster leaped back into his hole.

"I have a feeling that a dangum montage is coming." Fowlmouth told the audience.

Fowlmouth was in Daffy Duck's class.

"Alright everyone, since some people think Bugs is better than me, I'm assigning everyone a five hundred page essay on why I am better than Bugs!" Daffy scoffed.

Fowlmouth's jar reached the ground before he yelled out:

"Holy...!"

He put more money in his swear jar.

Later, he was watching Tom Brady lose in one of his matches.

"What?! Tom Brady lost?!" Fowlmouth yelled. "How in the...!"

He put more money in the swear jar.

Later, he was walking to his table, and stubbed his toe on the leg to where it was swelling to the size of a beach ball and the table was screaming.

"Ah, dangum...!" Fowlmouth yelled.

More money was put into the jar.

Later, he was re-watching the stream where Shirley and Furrball play Craft the Blocks, and got to the moment where they kiss.

"Furrball..." Fowlmouth seethed. "That sneaky little..."

Even more money went into the jar.

Later, he was playing an arcade version of Craft the Blocks at the arcade. He was trying to build a statue out of Shirley, and was only one block away. When he placed it, he was about to go tell Shirley and show her it, but his timer ran out and the game shut off before he could go find her. His face turned red and he yelled out:

"FOR THE LOVE OF...!"

A lot of money went into his swear jar.

After a week, Buster came to check on Fowlmouth and his swear jar.

"Hey Fowlmouth, how's the...?" He greeted.

Buster saw the swear jar, and it was overflowing with money to where it was touching the ceiling.

"Gee, not even a swear jar can contain his cussing." Buster shrugged.

Suddenly, Fowlmouth walked into the room, wearing a smart suit.

"Why, hello there, Buster." He greeted.

"F-Fowlmouth?" Buster stammered.

"The swear jar taught me to have a new attitude." Fowlmouth replied. "I'm now calm and polite."

"Guess the jar worked like a charm." Buster commented.

"Yep." Fowlmouth replied. "And now I'm gonna see if Shirley will go on another date with me."

He called Shirley.

"Hey Shirls, it's the new Fowlmouth." He greeted.

The phone erupted with incomprehensible screaming, then Shirley hung up.

"Aw man, she said she's gonna block my number." Fowlmouth sighed.

"Not everyone's (bleep-bleep) lucky." Buster replied, clamping his mouth shut after the cussing slipped out.

Hearing Buster cuss sent Fowlmouth into hysterical rage.

"Hey! How come you can (bleep-bleep) cuss but I (bleep-bleep) can't?!" He yelled.

While Fowlmouth was getting into a tirade, Buster slipped away, and Fowlmouth grabbed his jar, poured out all the money, and threw it out of the window. He heard a loud smash.

"Like, who broke my window?!" Shirley's voice boomed.

Fowlmouth dashed off.