One whose ballsack is screwed on tight. One who is aggressive & tough, who can take on anything and who doesn't take shit from anyone.
Thomas is definitely ballsackian. He doesn't give a damn who he tells off.
What the lieutenant did was ballsackian. He took his recon team of 6 men 20 miles behind enemy lines for a week and inflicted heavy casualties upon the enemy.
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."