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A lisp is when people pronounce their "s" sounds with a "th" sound. People with lisps should not be categorized as retarded or stupid but sadly most of the time are.
Oh you should just stop talking your lisp is really bad today.
Lisp by heyheyheyheyhey!!! May 26, 2009
Related Words
The most cruel and torturous word in the English Language, where a person has a speah impediment that stops them from speaking correctly.
Who was the jerk who put an "S" in the word lisp ?
lisp by Matthew Stoner January 3, 2007
A speech impediment which causes the person with it to mispronounce the sounds 's' and 'z'.
Person without lisp: Today I shall swim in the sea with my sister
Person with lisp: Today I shall thwim in the thea with me thithter
lisp by love child February 3, 2005
One of the most powerful and most respected family of programming languages by computer scientists. Lisp can rewrite itself on the fly, although this potential is rarely exploited. Mainstream Lisp dialects have steep learning curves, so they're rarely used outside of artificial intelligence, space missions, or computer algebra apps, but they are intended to be general purpose.
Dude 1: check it out, I just wrote a Google clone in Lisp while waiting for the bus.
Dude 2: damn, that's more parenthesis than the pennies in my granny's drawer.
lisp by lispdude August 11, 2007
To talk with a speech impediment and not be able to sound out their Esshes.
I can not help that i talk with a lisp Dan but will you please move out of your desk so i can eat my Ssheasar Sshalad.
lisp by Grimey the Groper April 9, 2006
The trait that immediately elevates a woman's attractiveness 4 1/2 points.
"Dude, that chicks a five, at best."

"Nuh uh, did you hear her lisp? She's a ten, for sure (rounding up)!"
Lisp by ghdhjvhj July 13, 2017