'bawg- ass' a sweaty, clammy ass affect, usually invoked by nervousness, hot weather, or excessive clenching of the cheeks. Bog ass often produces embarrassing scenarios of sweat marks on light material pants and is accompanied by sticking together of the cheeks, and sometimes to the pants themselves.
"Aww man! Would you mind checking out my bum, to see if you can tell I have bog ass? It feels kinda clammy in my pants party..."