A mtn dew sippy cup is when two people (consenting ofc) have sexual relations where one person takes a straw, sips up some mtn dew, puts the straw in the partners ass and releases the mtn dew into their ass and then proceed to let the mtn dew dribble into their mouth.
Tony: hey babe, I’ve been thinking and I wanna do try doing a mtn dew sippy cup in bed tonight
Tony’s hot babe: I mean uh sure dude wtv
Tony’s hot babe: I mean uh sure dude wtv
by YungCazual December 4, 2024

by sippy juice dealer April 27, 2022

Sippy:
To be sippy is when a person is cute enough or their personality fire enough for you to want to just have a talk with them.
To be sippy is when a person is cute enough or their personality fire enough for you to want to just have a talk with them.
She so Sippy bro.
by realmonke82 November 1, 2021

by Ladnygusmc33 April 1, 2016

"Hey man, you don't look so good, everything okay?"
"I've got a monstrous hangover, went out for a quiet drink last night but it ended up turning into sippies."
"I've got a monstrous hangover, went out for a quiet drink last night but it ended up turning into sippies."
by Trains McAvanti July 24, 2021

Off the alcohol or some type of liquor. Often used in the late nights and after or at parties. Off the sippy cup is the mild version of being drunk rather than being absolutely plastered.
by Cockalino May 1, 2020
