used to describe a situation that is undesirable for whatever particular reason(s). Derived from the word nightmare which has been joined with the word balls to create "mareballs"
"OMG! I was out last night and I fell over a table of drinks in front of everyone- complete mareballs!"
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."