A throw up in London is known as a few letters of your tag graffed in dub style, sometimes filled in.
You should of set a throw up instead of a dub.
Toilet: hey, you, girl with eating disorder! Gove me food. *opens girl's stomach. eats toilet food*
Flashing a hip hop/street handsign
-Snoop Dogg throw's up the west side sign.
-Fat Joe thow's up the BX sign.
When you are shooting in basketball and you keep missing and air balling and clunking it off the rim.
Awe man I'm throwing up bricks from the three point today!