His speech was filled with barrack-room humor that had the whole room laughing.

barrack-room 是由 barrack（军营）和 room（房间）组成的复合形容词。barrack 指"军营、兵营"，room 指"房间"。 barrack-room 字面意思是"军营房间的"，引申为"军营式的"，常用来形容粗俗直率、带有军人特色的幽默风格。