A combination of "whistle" and "Dixon;" meaning to have a whistle dick, and to be a Dixon. A whistle Dixon is one who has had his crank shaft bored out by another dudes tongue, thereby making a whistle sound.
"Oh shit. Cover your crotches guys, here comes ole whistle Dixon."
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."