A female singer who kissed a girl and liked it and who thinks you're gay...

A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.

The act of flashing and then thrusting your genitals in front of someone.

the act of a girl kissing/making out with another girl.

She is super inspirational. Her song firework really helped me through tough times when my ipod died. Her chorus for firework is so magical when she rhymes boom boom boom with moon moon moon, i die of happiness. Also you you you is rhymed with moon moon moon. Lastly, she tops it off with rhyming ah ah ah with ah ah ah.

Someone who gets a lot of nominations but never wins any of those.

Derivatives:
Katy Perry-ied

An American recording artist who sings about lesbian relationships, manic depressive disorder, getting married while drunk, and sex on the California beach.