In prison, an inmate is asked to "drop the chalupa" which means to squad down, lean forward enough for the guard to see their asshole, then cough. This is how guards check for things shoved up the ass.
Hey offender, why are you acting weird? Get out of them and drop the chalupa!
by Aruced November 04, 2011
when you tell someone who keeps pursuing you and trying to hit on you to back the fuck off or to cut the crap because you're just not interested
Sarah was at a party and this guy named Kelvin kept tryin to holla holla so she told him "Drop the Chalupa Kelvin! You're not my type!"
by jotheho4m_Mexico June 27, 2010