1. Sitting on someones's face with their nose and other organs nestled within your ass crack and proceeding to bust ass.
Sister passed out early from drinking so brother dropped his drawers and sat on her face and gave her a clam baked.
1) The act of smoking marijuana in an enclosed space, esp. when the space is particularly small and cramped.
All 6 of us had a clambake and smoked that fatty in my bathroom with the door closed and when we came out our eyes were all glassy and bloodshot.
Any situation in which a small room (a.k.a. a foxhole)is closed to oncomeing airation. Following the rooms air seal, marijuana is iginited in flame, causing massive clouding.
"Hey Clam-master, pinch me some heads and rock the ...cla...cla...clambake"
Smoking large amounts of marijuana with many people in an enclosed space, for example, a closet or walk-in cooler.
Clambake in my closet at 0400.