Is when someone show off their wealth or their a body physical attribute (e.g. huge muscles, blue eyes, etc) on people he/she think that they envy them.
"Bro, I took a picture of myself after the gym and posted it on instagram to flex on them Haters."
"Man, this guy keep posting his new Ferrari on his social media feeds to flex on them haters"
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the USCoast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.