not the physical act of a dolphin, but the noise a person can make when over exaggerating an inhaling, while closing your throat
the sound is a high pitched frequency that takes time to learn and master
it can be used to annoy people, in place of words, or just cause
it is imitated by an awkward throat back up, and words such as oi, eoo, wha, etc
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.
"Base we've got some square groupers floating outside of Miami harbor."