Molly whop (one)

Molly whop (one)

To strike, slap, or slam into one, either once or repeatedly; to wallop one. The term is sometimes hyphenated, and sometimes both, or neither, "Molly" and "whop" are capitalized. I'm gonna Molly-whop you if you don't shut your mouth! The car sped through the red life and Molly Whopped van that had started to drive forward.
See also: molly, whop
Farlex Dictionary of Idioms.

Molly whop someone

tv. to beat someone up; to slap someone hard. Quiet or I’ll Molly whop you.
See also: molly, someone, whop
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • Molly whop someone
  • whop
  • whopping
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  • hit-and-miss
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