The act of three or more males having anal sexual intercourse. Generally, the individuals stand or lie in a line, with the individual behind penetrating them.

As long as each individual serves as a link and does not break the chain, the act can be considered a "chainfuck". Therefore other forms of sexual intercourse can be performed by the end links, such as oral intercourse.
Male 1: "So what did you can the guys get up to last night?"
Male 2: "We were watching the game, but we got a bit drunk and ended up chainfucking eachother..."

Female 1: "I went to see my boyfriend last night, but I walked in on him chainfucking with his friends."
Female 2: "Really? Did you break up with him? Is he single now?"
Female 1: "Yeah, but he's probably gay."
by Arkinus January 14, 2013
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ChainFucking-When one has sex with a partner multiple times in a row. This usually is when a man and a woman have sexual intercourse with a condom and then the male finishes and then takes of the used condom and then puts on a new one. Usually this action occurs more then one time.
Guy 1- Dude Last Night I fucked that girl from the party
Guy 2- OH shit really?
Guy 3- YEA I saw the condoms in the Trash the morning after
Guy 1- Yea sorry if their was a mess I was ChainFucking the shit out of her.
by IF-WI February 1, 2011
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