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18.
To ejaculate on the lower part of the back after performing doggy style, mop up the junk using a super absorbent yellow towel. Hold the towel in your fist then donkey-punch the submissive and yell out ShamWOW!!
I had the best shamWOW finish last night, and no mess afterwards!
by SMBKRTan November 17, 2009
 
1.
To repeatedly strike a prostitute until she stops biting your tongue.

As made famous by Vince Offer aka the shamwow guy.
"Prostitute Survival 101: Do not be afraid to shamwow the prostitute if she attempts to bite your tongue"

"I was with this crazy prostitute last night who tried to bite my tongue...fortunately i was able to shamwow her and get away"

"Wow, that hooker just got shamwowed!"
by DVMWOW! April 01, 2009
 
2.
The best invention since marijuana. (thank u god)
yeahhh i rolled my weed with a shamwow.
by Secretsandwich March 12, 2009
 
3.
When a guy you thought was hot does something so unsexy that your vagina dries up in an instant.

The male equivalent of anti-viagra
Yeah, girlfriend...Rick and I were really getting it on and I was ready, and then he pulled out his tiny pencil dick and it totally shamwowed me....
by Piece Of Work February 27, 2010
 
4.
When your girlfriend thinks she is being cute by biting down on one of your body parts and you shout "Sham Wow Bitch!" while punching her in the face until she lets go.
Just like what the Sham Wow guy did except it was a hooker and he got arrested.
by Wish I was in Florida July 01, 2009
 
5.
The sound classic comic book Batman makes when he punches a prostitute in the face.
"Oh no, I believe she is beginning to use her teeth!"

**ShamWow!**

It was a close one, but Batman made it out alive.
by Skizla March 30, 2009
 
6.
A very useful product that causes many people to say wow every time.
*uses shamwow*

Wow.
by MeNoYou May 31, 2010
 
7.
The first and last shammy you'll ever need. Trust me, This thing does miracles. Works in the kitchen, bathroom, bedroom, and even your new boat.

Don't trust leading imitators!
-"Hey Jeff?"

-"Yeah Kwon"

-"Hand me that Sham-wow!"

-"Why?"

-"Me and the wife just had sex"
by Kreg Keagy July 22, 2008