DCHP-1 Online
hooker ((2)) [ < Brit.dial. "large amount"] 
Slang a drink of liquor, especially a generous one.
- 1887 We went in and were served out with a pretty stiff hooker each. . . .
- 1910 "I'd give up my diamonds for a hooker of whisky. . . ."
- 1954 Danny was quiet enough until he got about six hookers under his belt.
- 1887 We went in and were served out with a pretty stiff hooker each. . . .