Top definition
a hand gesture where the thumb and middle finger are perpendicular to each other and the pointer/index is evenly in between. (other fingers are not seen)

meaning: peace,live on the edge,be X-treme, and wish me luck
person says "dude im gonna do this insane jump." (guy shows the 45-90 sign) and says "sweet thats gonna be awesome i gotta try"
by BrassBoi April 19, 2008
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug