look up any word, like blumpkin:
 
1.
Not being sensible. Doing something pointless while others are trying to get things done. Or just wasting peoples time in any sense.
"James, stop pissing about! I'm trying to get a very important despatch out!"

"Don't have a go at me, Steve's not even at work today, at least I'm doing something!"

"Checking for drugs and porn in the lockers isn't helping!"
by Wingy July 17, 2006
 
2.
To needlessly waste time
We were an hour late for dinner because the wife spent an hour pissing about with make up and doing her hair.
My pint was empty because my mate spent 20 minutes pissing about trying to chat up the barmaid.
by Djc2508 November 06, 2013