An evolution of b-bomb in which one is not restricted to balancing books on one's boner, but many random household objects.
Balancing Things On My Boner = B-Tomb
"Look at this B-tomb I have going a hoy hoy hoy!!!!!! I have an apple PIE on there! APPLE PIE!!!!"
"HERE YOU GO, HAVE ANOTHER APPLE PIE FOR YOUR B-TOMB"
"Hey Bubba, look at my b-tomb, a-hoy-hoy-hoy!
"I'll b-tomb you, you stupid kid" *BWAM*