Top definition
When your arm goes dead after having it hang over a chair all night when talking to a pretty girl.
Hey, look at that dude over there. His arms gone limp.
Yup, he's got saturdaynightitis.
by fifi live from Gay Paree April 03, 2009
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