The name derives from hip hop. It may also come from resembling a thwomp from the Super Mario series. It takes this appearance when it is tightly packed into a small plastic bag and the edges become ruffled.

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Particularly: “dubious”

Alternative formsEdit


twomp ‎(plural twomps)

  1. (US, slang, neologism) 20 U.S. dollars' worth of marijuana.
    • 1998 July 21, "TSmith6235", “Re: Those new Partnership for a drug-free America commercials...”[1], alt.drugs.pot, Usenet:
      However, last night we scored a twomp (20 sack) of this extremely chronic weed, and we hotboxed Shaun's car...I was GONE. Just out of it. Almost uncomfortably stoned.
    • 1998 August 23, Alexander Carlton, “Re: Doser aka A. Carlton vs. WUZ”[2],, Usenet:
      [] twomp is twenty, so a twomp-sack is a 20 sack, generally a tiny bit over a gram of green (prices are outrageous).
    • 1999 February 13, "Michelle", “Re: shitty tips in the past week”[3],, Usenet:
      [replying to: Resell value is very high for weed...mmmmm] You're telling me. $20 a twomp? Fucking outrageous.
    • 2000 January 13, "BilG4", “Re: How long does a $20 sack last you?”[4], rec.drugs.cannabis, Usenet:
      HAHAHAHAHAHA i [sic] get at leat [sic] 6 grams in a twomp []
  2. (US, slang) Twenty.
    • 1999 April 7, Edmund Lee, “uop's banquet”[5],, Usenet:
      it's only gonna cost a twomp, right? hella cheap.


  • Tom Gally, twomp, according to Berkeley High School Slang Dictionary, North Atlantic Books, quoted Feb. 2004.