doing something irreparably stupid as a result of a temporary lapse in reason caused by a hot chick.
(not to be confused with chicks' laps, which are significantly cooler)
Dude Uno: Hey so are you and Matt on speaking terms now?
Dude Dos: Na, i fucked up our relationship by going after his girl
Stacey.
Dude Uno : Man, you had yourself a major chick lapse.