A term most commonly used amongst the sexually active elderly to describe a gentleman who’s pubic hair has gone white, long and untamed - completely hiding his penis, visually resembling the tail of a lamb. He gives his lady one pump in her front door and one pump in her back door (two shakes) before losing his erection and calling it a night. His lady is less than satisfied, but it’s better than nothing.
Bernie, are you and Irene coming to bingo?”
“No, I’ve gotta get this bitch home to give her Two Shakes of a Lamb’s Tail. See you next week, if we’re not dead yet.”
by LambsTail January 09, 2018
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very quickly, as soon as possible

popularized by Uma Thurman in the movie Pulp Fiction
Just make yourself a drink Vincent and i'll be down in two shakes of a lamb's tail.
by Anonymous September 01, 2003
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To do something in a fast manner - as quicks a lambs tail shakes...twice
I'll be there in two shakes of a lamb's tail...
by LimeyGeeza August 31, 2003
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Soon. Originally from areas in Yorkshire and Wales. Spread throughout the Southern Hemisphere in the nineteenth and twentieth centuries, mostly in parts of Australia and the whole of New Zealand.
Kiwi #1, "Hey bru, have you finished with that beautiful young sheep? Is it my turn yet?"
Kiwi #2, "Yeah cuz, just gimme two shakes of a lamb's tail to clean myself up here. Primo Flossy."
by The Strut September 29, 2004
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