An individual who clam jams, in other words an individual who prevents a female from getting some hot action whether intentionally or unintentionally. A clam jam is a common maneuver in the lesbian community, but can also be applied when a girl is trying to hook up with a guy. While clam jamming is an effective form of birth control it is frowned upon in most societies.
wendy: Dang i was totally gonna get some last night till that kid's friend ended up being a stupid clam jammer.

wendy's friend: Rude!

wendy: Whateva i'm over it
by Whateva!! February 9, 2010
Get the clam jammer mug.
a slang term for penis. the jammer of the clam. the clam being the vagina.
by titanboy2793 July 31, 2008
Get the Clam Jammer mug.
Women’s high wasted jeans or shorts that jam into their clam.
Natalie was wearing those clam jammers again today. She’s got quite a camel toe.
by JDubya67 May 31, 2019
Get the clam jammers mug.