Definition of "jammer" []

• Any device used to jam radio reception. (noun)
• A form of swimwear used by athletes. (noun)
• A device (e.g. a jumar) which will slide along a rope in one direction but not the other, used in rock-climbing, caving etc. (noun)
• A player in who attempts to score points by making their way past other players. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "Gonna quit this whammy-jammer is what I'm gonna do!"
• "One player from each team-the "jammer" - tries to lap the track and push through the pack of other rollergirls, scoring points along the way."
• "All characters are over the top, with each having a dance style and a jammer, which is basically a special move that can be used to damage opponents."