the process in which a male jamz his log, also known as a really hard boner into a cavity in which it is not well suited. such as a super duper tight anus hole.
1. The act of "jamming log" also known as Sex, Coitus, or the Physical Act of Love.
2. The act of jamming a wooden log into a wet hole.
3. The fakepornographic film that Tara Reid's character "Bunny" appears in, in the movie "The Big Lebowski".
A sport wherein two contestants press their anuses together and attempt to forcefullydefecate into the each other's rectums. The loser is obliged to shit out both turds.