Brian Backsythe is a guppy.
by Barbra Strychnine June 20, 2021

"You're such a guppy!"
by ThatHoScotty May 10, 2009

I don’t know about everywhere else, but in Australia it’s used as a derogatory word. Depending on the situation it could mean stupid, thick, ugly, or dopey. It’s really just a word to use if you don’t want to swear.
by xGuppyGirlx July 7, 2020

The act of placing your hand between someones ass cheeks from behind, and flopping your hand side to side in a manner that resembles a guppy. One must shout "guppy" before executing the act; Forewarning is necessary to allow the victim time to clench cheeks and minimize penetration.
(noun) "I let my guard down while Jennie was behind me and she gave me a guppy."
(verb) "She guppied me so hard, I'll be walking with a limp for the next 24 hours."
(verb) "She guppied me so hard, I'll be walking with a limp for the next 24 hours."
by JumboJam February 3, 2015

A Person Who Lies About Their Age Online To Engage In An Online Relationship To Look Older. Not To Be Confused With Catfish (Somebody Who Lies About Their Looks Online)
Person 1: Man She Catfished Me With Her Age Bro I Nearly Caught A Case Nigga.
Person 2: Dont You Mean Guppied?
Person 1: No? I Mean Catfish. Whats Guppied?
Person 2: Somebody Who Lies About Their Age Online But Not Their Looks.
Person 1: Ahhhhh Ok
Person 2: Yeah. But Be Careful Next Time Nigga.
Person 2: Dont You Mean Guppied?
Person 1: No? I Mean Catfish. Whats Guppied?
Person 2: Somebody Who Lies About Their Age Online But Not Their Looks.
Person 1: Ahhhhh Ok
Person 2: Yeah. But Be Careful Next Time Nigga.
by DiscordNewgenLol April 22, 2021

When your man/lady does some stupid ass but they’re so cute while doing it, that you can’t yell at them
by Mr.bonz July 4, 2020
