lethal pants is when a man gets a boner that could possibly kill someone or that he may rape a man or woman.
"Yo Simon, tell yo girl to keep away from jack, he's got some lethal pants"
"Hey Carly, watch out for jack he has lethal pants!"
"Hey Carly, watch out for jack he has lethal pants!"
by ExpertOnEvrything69 May 29, 2017
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