When you're knocking one out on the top bunk watching porn full volume on your ipad and you hear your mum walking up the stairs so you panic and role over off the top bunk. Your mum hears a thump and goes to take a look. To her surprise she finds her son on the floor covered in spunk with bruised ribs and a broken ipad.
When someone ejaculates into a mixture of a food such as cake mix or biscuit mix so then the food smells and tastes like a hot load.
Josh: wow smell my biscuit
Mitch: dude thats pretty sick
Josh: yeah it some one definately dropped a spunk bomb.
Joe: Omg these biscuits are amazing (eats the spunk bombed biscuit in one bite)