"And the cloud dragon-it talked! And everything! It was so wicked awesome!"
"Um, Finn-"
"It said stuff like no, really and you're such a weirdo and get the lump outta here-"
"That's cause it was me, butt-face! Gawd, what the lump did you drink last night?!" Oops. Finn blushed as everyone else turned around to stare at him like he was crazy in the pants. Which he probably had been the other night.
"But...you looked like a big cloud. That was a dragon."
"That's because you drank waaaaay too many bubble-tinis last night, bro," Jake said. "Like, five of 'em. Man, you were so totally wasted, it was awesome!" He paused. "Until you started farting bubbles everywhere and we had to leave."
"I what?!" He blushed even harder. Yep, he'd definitely been crazy in the pants. "A-and you all-"
"Oh yeah." Marceline snickered. "They smelled like bubblegum, too!"
"But don't worry, Finn, your bubblegum-scented gas proved very useful in my latest experiment," Princess Bubblegum said, patting him on the back. "But from now on maybe you oughta stay away from the bubble-tinis. You are just a kid."
And that's why Finn was never allowed to have a bubble-tini again. However, Jake would always find a way to get drunk on them and make a total patoot of himself, so the gang still got their laughs. Unles Jake turned into a giant monster and tried to eat them, in which case they ran for their lives.