Is Mayonnaise an instrument?

Patrick walked into his classroom late, (as usual)

"Mr. Starr, you're late again. I'll be seeing you after class."

Patrick scoffed at his teacher's remark. The teacher goes on with his lecture.

"Are there any more questions?"

Patrick than raises his hands to ask a question that holds the answer to the universe.

"Yes Patrick," Mr. Fancyson said.

"Is Mayonnaise an instrument?"

"God damn it Patrick! You come in my class late, ask stupid questions, and make yourself look more stupid. Not only that, but you make Doodlebob look smart."

Suddenly, Doodle Bob burst into the classroom drunk off his ass.

"Mahoynemia!"

"Um, Mr. Teacher, you didn't answer my question."

"Sigh, no Patrick mayonnaise is not an instrument, and anymore stupid questions and I will suspend you."

Patrick raised his hand again, and before he could speak Mr. Fancyson interrupted him.

"Horse Radish isn't an instrument either. Now get out of my class."

Patrick happily stood up, and skipped out of his classroom. Patrick opened the door and said: "Hey Spongebob! Let's go Jellyfishing."