When a miserable old git sits in their car while idling it for an extended period of time for no apparent reason.
Person 1: I didn't realise the mog next door was still living, what does he do with his time?
Person 2: He usually just sits in his car with a face like a slapped arse mogging it.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.