The sick feeling one gets after consuming large amounts of junk food
Dude, I just ate a whole pack of Oreos and I have some serious snacklash.
by Ender527 February 25, 2010
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Any of the negative effects of excessive and/or reckless snacking. There are many forms of snacklash, including obesity, yoings, and not having any cookies left.
Damnit, I have snacklash! I've gained a pound and have serious yoings after eating that whole bag of cookies.
by Erika M July 27, 2005
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