1) An arrangement usually via telephone, made with intentions to engage in various sexual acts; a hookup.
2) A cell phone call made inadvertently through a pocket in one's pants.
1) After so many months without any action, I phoned Jessica for an immediate booty call. She is so compliant.
2) Every damn day my dad makes a booty call to my phone. It ends up leaving a voice message, and I get to hear what he does all day long!