Undermans up

Being full; usually used after a meal or large snack

Izaak: man that was a good meal
Dagen: undermans up
Izaak: most definitely

by Bonkzzz April 6, 2022

showin up

Acting dumb to impress others, usually friends.

ayo, why you showin' up ?

by Anonymous March 27, 2005

Jeezin' it up

most common conjugation of Jeez it up. Means to be doing anything related to jesus, ie; church.

yo, I was just over at the church, Jeezin' it up!

by Eric January 23, 2004

Thist Up

Taking milk thistle before you get blackout drunk so you won’t be hungover as balls.

Bro, don’t forget to thist up before we pound some delos and jäger bombs.

by Haunchy January 28, 2021

zip up

To shut one's mouth, to keep quiet

Zip up about this deal, okay?
Dude, zip up!

by Rusty2996 February 23, 2021

struck up

to begin the conversation

But finally, after I was riding a while, the cab driver and I sort of struck up a conversation.
(J. D. Salinger “The catcher in the rye”

by Eliot Waugh March 11, 2021

German it up

what German people do: they German it up.

Girl 1: this guy I'm dating is German
Girl 2: wow, so you're really about to german it up
Girl 1: god, Gretchen, you're so weird

by Goldfish God March 26, 2021