Top definition
an extra mouse laying around that the user puts in place of the main mouse. the user can then proceed to use both dick infected hands on this mouse. It avoids having to wipe your main mouse again when your right hand just wasn't cutting it enough. the beat-off mouse does not have to be cleaned.

inconsiderate assholes only use one mouse. your friends use that computer too, buddy!!

Same thing goes for the beat-off keyboard
God Danit Jim!! My hand is all sticky!! Did you switch out the beat-off mouse!?!
by Chenry08 August 23, 2007
Get the mug
Get a beat-off mouse mug for your Uncle Bob.