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

Who lives in a pineapple under the sea 

Spongebob squarepants

Sapphire: Who lives in a pineapple under the sea?

Jayden: Nobody cares

Who lives in a pineapple under the sea by EarthlingGod1729 March 18, 2022

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

Smart as a Pineapple 

It refers to a really smart, and all-around nice guy. Specifically a Psycho(fan of Psych).

You are as smart as a pineapple.

Smart as a Pineapple by Not_a_Robot__Promise August 9, 2023

Pineapple on a stick 

Term used when expressing a strange body shape. Characteristics include a large, tall, narrow head atop a near skeletal body frame. Classic example being Junkie-sheek Nick Owen of London.

It’s Nick’s pineapple on a stick that allows him to fit into those ridiculous womens’ skinny jeans

Pineapple on a stick by Rachael Hibbert March 4, 2009

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