A Pineapple 

-A Pineapple is an ex you really hate or despise after breaking up with them.
-Sometimes used to describe someone that is seemingly sweet but prickly on the outside.

Genny: Did you hear Kristin and Claire broke up last night?
Galeela: Yeah! I heard Kristin called Claire a Pineapple!
Genny: Omg, I never thought Claire was so prickly!

A Pineapple by KYS-U-HOMOPHOBIC-BITCH November 17, 2016

who lives in a pineapple under the sea 

The first line of the Spongebob Squarepants opening theme. Also a pretty dank meme.

Who lives in a pineapple under the sea? Spongebob Squarepants!

who lives in a pineapple under the sea by Beeg Yoshi October 16, 2017

Playing Hot Potato with a Pineapple 

Desperately trying to ditch an object that harms its holder.

In the Ready Player One movie, the High Five were passing along Chucky the Living doll in hopes of not getting stabbed. They were Playing Hot Potato with a Pineapple. ...get it? Li-like a grenade?

Playing Hot Potato with a Pineapple by The Logical Fallacy May 29, 2018

put a pineapple on it 

what someone says when they catch someone in a lie or it is used when someone is being disrespectful.

person 1: you're so ugly
person 2: oh put a pineapple on it !

person 1: oh no you didnt!

person 2: oh yes i did!

put a pineapple on it by Sophia V. April 29, 2020

trip on a pineapple 

To trip on a pineapple is to step on a live grenade and dismember yourself. Often times this results in death.

Jim is about to trip on a pineapple, should we warn him? I don't really want to have to clean his blood off my shirt.

trip on a pineapple by OhSnapPwned August 29, 2006

sit on a pineapple 

Basically means take it up the ass with a big wide cock. Usually used to insult someone and is synonymous with Fuck off

Cock

Jimmy you are so annoying, go sit on a pineapple.

sit on a pineapple by Hojololol July 8, 2016

got a pineapple 

when you get a pineapple put up your ass after fucking up at work.

fucking hell old mate got a pineapple for fucking up the service schedule.

got a pineapple by Old Diamond February 14, 2022