Back-whack - backslash, the opposite of a forward slash(/)

Whack, being a slang term for forwardslash.
She used a back-whack instead of a hyphen.
by The Whack October 06, 2009
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The act of two people sitting back to back while masturbating.
Me and my best friend John wanted to jerk off together but we didn't want to see each other doing it. So we just back to whacked it.
by HeyItsYaBoi June 26, 2017
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the massage places that give you a happy ending
Rob: That oriental chick at the back and whack gave me the best hand job
Tim: Oriental is a rug, those chicks are asian
Rob: I fucked your sister
by Wally Krunk from the grave August 21, 2009
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A phrase that sums up the uroboros of fuckery everyone endures as a human being on this planet.

Usually said in response to a friend recounting a fucked up situation when no words suffice.
S: Remember how I told you last week that Dean wouldn’t stop talking about the “perfectly shaped hole” in the oak in the backyard? Well today I walked in on him...fucking the tree!
M: Can’t say I’m surprised. It all circles back to whack.
by monkeylabor December 28, 2020
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official name for a chiropractor / informal: may be shortened to ‘back quack
You should never pump heavy weights without wearing a body belt – ‘cause you’ll only end up at the outta-whack-back quack, Jack.
by ΔиłĦ☼иצ ߀₡ʞ September 24, 2012
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A massage parlor where working class men congregate at lunch for hand jobs or sex for money, usually Asian of some sort or russian
Yo Jim you wanna hit the back and whack at lunch? They have a valentine's special today

Cousin greg is a frequent flyer at the back and whack every 9th "massage" he gets the 10th free
by tommybatts February 18, 2015
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