a word that is used as a sexual innuendo used to joke around and can get extremely annoying when your youth paster keeps you up till 3 a.m. saying "that's what she said jokes" at a 30 hour famine. WARNING!!! These jokes are not funny when said by females. Most females say the phrase obnoxiously and they do not know when a good time to say it is.
girls: My butt hurts!
guy: That's what she said!
(people talking about cabin seen on internet)
guy: It looked bigger on the internet.
Fuego(Chris): That's what she said!
(Girl saying the phrase)
girl A: That's supid.
girl B: That's what she said!