First generation texting software.
Very annoying, because you have to click the buttons really a lot. e.g. 3 times the 2 for a C, 2 times the 3 for an E.
T9 makes texting a lot easier, although a lot of people turn off their T9 and use Multi-tap all the time.

See also:

T9

Swype

Blindtype
A: My phone is giving me all these funny words!!

B: Go back to Multi-tap then, you big nerd.
by Milanifan October 16, 2010
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Similar to multi-tasking with computers, it involves engaging in a variety of applications on a computer. However, in multi-slacking, this definition is restricted to include one or more of the following: gaming, chatting, listening to music, web browsing (non-educational), hacking, pirating, posting on forums, watching videos, or viewing pr0n.
AP Comp Sci is the perfect chance to practice my multi-slacking skills.
by Vivix July 7, 2004
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Multiple Negitive emotions all at once.
My freind betrayed me so now im have multi-motions and am going psychotic.
by Atjatta December 21, 2018
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A trip to the bathroom that is so massive that the toilet can not handle it all in one flush. One must often flush multiple times to deal with all of the toilet paper that comes with a large dump of this nature.
Martin: Dang, you were in the bathroom a long time.

Steve: Yeah, that was a real multi-flusher.
by Habeas_Corpus March 9, 2011
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Where a lad has a wank, but after the first (orgasm) or cum session he carries on going to achieve multiple rounds of cum. Danger, can become tiring and painful !
i came 4 times in multi-wank last night!
by multiwank November 3, 2009
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A saying which contains more than one pun, i.e. more than one play on words within the same saying.
I heard the funniest saying the other day: "Energizer Bunny arrested! Charged with battery." I just love multi-puns!
by hotdates January 9, 2012
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A person who can have multiple consecutive orgasms...
I love my woman cause she'll fuck me for soo long that there's nothing I can do but lay there, legs spread apart, shivering and moaning for the whole night...
by Karin November 23, 2003
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