Actually, Ennis uses that line (MOVIE ONLY) about three times, if I remember correctly. The first is when Jack returns to him, at the top of the stairs, in ABSOLUTE JOY. Jack fu**in' Twist!!!! I knew right then how he felt, and his language came out loud and strong (and vulgar) in just the right way. He also used it later in the scene by the river (a later camping trip) where Jack again raised the idea of them being together - Ennis got mad at Jack's impatience, and as Jack stormed off "I"m just thinkin'!", Ennis says "Yeah, you're a real thinker. Jack fu**in' Twist" -it's more the usual kind of angry use of an expletive, but it's the same one. Ennis says it again *I think, I'm not sure* in their last confrontation, in a much much harsher way, but it's still "Jack fu**in Twist!" Can anyone recall the timing of that last one in the movie? In fact in the story, Ennis only uses "fu**in" when he fights with Alma in the kitchen. JACK, however, uses it liberally, almost 15 times in the course of the story, both when angry and just for effect sometimes.
btb