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1.
frumby /frum-bee/ adj.

1. easygoing, nearing to the point of irresponsibility
2. laid back
3. joyous nonchalance
4. lack of concern caused by inhaling marijuana

noun: frumbulesence
adv.: frumbily
"His frumby attitude toward his work caused his grades to plummet."
"Dude, I'm feeling totally frumby, man, so I'm not going to work today. Pass the ganja."
by Brady & Cody February 22, 2008
 
2.
A tattoo on a person's (usually lower) back that is viewed from behind.
Yikes! Check out the frumby on that luscious lady!
by Unaboner October 03, 2006
 
3.
Short for from behind.
Dude, get some frumby.
by armsnlegs July 31, 2004