Smish means all forms of sex all at once. These include oral, anal, and of course, the classic, 69ing. It can replace the f-word in many intances. It takes a lot of skill to master, and also requires practice and hard work. Oh, and we should have you know. Smish is a bad-word, so don't use it lightly.
by Thomas Ruckman March 14, 2011
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A text message based (SMS) phishing attempt that appears to be legitimate but is intended to trick the recipient into divulging personal information.
This text must be a smish because Citibank never texts.
by Joustingdude May 19, 2009
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-Smish Smosh(ed)- Synonym(s) for drunk, high, wasted, or smashed, this term/phrase is typically used by prissy girls such as cheerleaders or sorority members. Often preceded by the word totally or so. To do in excess.
I got totally smish smoshed at the ditch party yesterday.

or

Put that drink down, you lookin all smish smoshed.
by Johnny Unitas August 30, 2006
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-Smish Smosh(ed)- Synonym(s) for drunk, high, wasted, or smashed, this term/phrase is typically used by prissy girls such as cheerleaders or sorority members. Often preceded by the word totally or so. To do in excess.
I got totally smish smoshed at the ditch party yesterday.

or

Put that drink down, you lookin all smish smoshed.
by Johnny Unitas August 29, 2006
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An illogical Action.

When a persons actions go beyond logical thought processes
If someone is trying to cook an egg in a cold frying pan then they are smishing because it is illogical to cooking in a cold pan
by nomeD08 June 13, 2009
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nick is fat therfore his jiggly smish hangs out ha ha nick
by amado April 28, 2005
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Term Used from Freddy Got Fingered. Used to Randomly Sidtrack a person for a getaway.
Guard: "Hey You!..Stop!"
Person:" Japan 4 Smish Smar"
Guard: "Huh?!"
by H.R. Puff-n-Stuff January 12, 2010
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