To drink huge amounts of beer or lager simply to get very, very drunk. Not to savor the taste or flavor, but just to get wasted. The phrase is used in London and parts of England, usually associated with wide-boy or East-end types, although a trip to Ibiza might be rewarded with a few examples too.
"C'mon boys! Let's get lagered-up! Look at the locals, they're waiting for us to get proper pissed! C'mon boys! Lagered-up! Lagered-up! Waaay!"
by Liquid Sky September 15, 2009

by ATwad August 2, 2013

by charlibyrd October 14, 2016

by IEatBurgar December 6, 2019

by mitch00uk April 12, 2015

by Hot n Now September 26, 2003

Roid up di alley, ya find mista osama bin laydn!
I wana roid up of dis by tamar marnun
He's in the changing rooms giving himself a roid up before training.
I wana roid up of dis by tamar marnun
He's in the changing rooms giving himself a roid up before training.
by Kung-Fu Jesus April 30, 2004
