look up any word, like donkey punch:
 
1.
A word used when the police show up, normally when there in a car or van. Note that this does not really apply to Community Police.

If you are out for example drinking whilst under age, and someone shouts "gavers" - its in your best interests to run and hide.
- People talking to each other -

Dave: GAVERS!! (usually followed by the screeches of a car)

- Everybody runs -
by Mike Thory November 23, 2007
 
2.
nickname usually used by common chavs for policemen
"Quick 'ide! A gaver car is comin'! Get out da way m8!"
by Debzie x-x December 27, 2004