"Lil Gup" is a slang term that is short for "little guppy" and can refer to a younger person in general or a person with less experience in a particular field. It can also be used in a dismissive or condescending way, even when referring to someone older.This originated in the twitch.com ecosystem within a popular New Zealand based Streamer "Quin69" aka Quintin Crawford .
by Les "X" Grossman May 23, 2025