Top definition
To lose control of oneself, utterly and completely, and to exude douche.

Named for Spencer Pratt's behavior on the Mtv reality show The Hills.
"what the fuck were you THINKING forgetting to roll my car windows up homie?!! don't you read the weather report?? FUCK!!!"

"dude, you're spencing out. be cool."
by $600 June 17, 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
2
The name given to those who act out immaturely, like Spencer Pratt's meltdown on I'm a Celebrity, Get my Out of Here.
Person #1: "Oh, boohoohoo! Blah, blah, blah!"
Person #2: "Dude, you're totally Spencing Out."
by CCSchott June 16, 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

Alphabetical list