Green’s Dictionary of Slang

1. (also beer up) to drink / get drunk on beer.

1785		‘Peter Pindar’ ‘Odes to the Royal Academicians’ Works I (1812) 95: He surely had been brandying it or beering, that is, in plainer English, he was drunk.
1863		Worcs. Chron. 20 May 4/1: Those who go ‘beering’ at night, go ‘ailing’ the next morning.
1871		Cairo Dly Bulletin (IL) 10 Apr. 3/2: She was on her tri-monthly drunk yesterday [...] Having ‘beered up’ to the proper pitch, the next thing in order was a fight.
1881		Omaha Dly Bee (NE) 15 June 2/2: Let’s beer. I’m hoarse.
1893		‘’Arriet on Labour’ in Punch 26 Aug. 88/1: When Women’s Rights include the charnce of gettin’ a fair ’earing / [...] why then there’ll be less bashing and less beering.
1902		Ben Sun ‘Cocky’s Handy Man’ in Bulletin Reciter 1880–1901 164: The shearer’s mostly beering when he isn’t on the strike.
2013		J. Stahl Bad Sex on Speed 11: The seat’s wet after a pack of frat boys beer up too hard and leave Bud puddles.

2. to give someone a beer; usu. in imper. beer me!

1883		Gringo and Greaser 1 Sept. 2/1: If we can find some other philanthropist who will kindly hash, beer and sleep us, we’ll be there [DA].
1983		L. Frank Playing Hardball 55: Beer me!
1986		Eble Campus Sl. Mar.

3. to spend one’s money on beer.

1915

Bulletin (Sydney) 8 July 10/2: I gave him a bob; he beered it, and brought the tale to a close.