Sentence:  That night we requisitioned a ranch house and all got drunk and Johnny did this dance with his tie around his neck lolling his head on one side and letting his tongue fall out and wriggled his ass and dropped his pants and his cock flipped out and the soldiers rolled around laughing till they pissed all over themselves—Then they rigged up a harness under his arms and hoisted him up off the floor to a beam and <WSD>gang-fucked</WSD> him—By the time we got to Monterrey there was Spaniards around in armor like a costume movie and again we were lucky to arrive just at the right time. 
Meaning of the word marked with <WSD> tags:  To take turns having sex with someone or something