tallywhacker

Meaning

Noun

• penis

Origin

• Uncertain. Possibly from tally, from Middle English taly, from Anglo-Norman tallie, Old French taillee, taillie, from Medieval Latin tallia, talia, taillia, from Latin talea, or alternatively from tail, + wag, likely influenced by whack, -er. Compare tallywag, an eighteenth century dialect term meaning “penis”. Attested as tallywhacker or tallywacker since the twentieth century.