wow look at the size of my hard tallywacker
by billy February 4, 2003
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To jack off.

Also known as: slippin' the fishy, spanking it, choking the monkey, cranking the pecker, or teaching the one-eyed china man how to dance.
"Please, tallywack me darlin.'"
by Poke My Poker April 14, 2004
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The common act of shaking ones male reproductive organ to remove the last few drops of urine after a trip to the bathroom
‘John are you nearly finished on the loo
‘Ill be right out steve, im just finishing tallywacking’
by LJP corp April 8, 2021
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Slang. The male copulatory organ. The term very popular in rugger-bugger piss-ups
At the piss up after winning the rugby world cup, Jonny Wilkinson waved his tallywacker at the Australians

Orig. <French 'tallier'=pull + Western Irish mispronunciation of 'wanker'>
by emigre December 16, 2003
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Something used to syphon gas out of a car.
"WOW, that guy just stuck his Tallywacker in a gas tank!"
by Pete Negwaski! June 17, 2006
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