loosey-goosey

[ loo-see-goo-see ]
/ ˈlu siˈgu si /

adjective Slang.

relaxed; calm; unperturbed: Despite the pressure, he was loosey-goosey throughout the game.

Origin of loosey-goosey

1965–70; rhyming compound (with -y1) based on the idiom loose as a goose