名詞 goon:

1. an awkward stupid person
   同義詞：lout, clod, stumblebum, oaf, lubber, lummox, lump, gawk
2. an aggressive and violent young criminal
   同義詞：hood, hoodlum, punk, thug, tough, toughie, strong-armer

goon

n.Slang （名詞）【俚語】
A thug hired to intimidate or harm opponents.
打手：一個受雇用去恐嚇或傷害對手的暴徒
A stupid or oafish person.
愚蠢或癡呆的人

來源：
Probably ultimately short for gooney [simpleton]
可能最終為 gooney的簡寫[傻瓜；呆子]