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1.
A term used to describe a man who is used by a woman exclusively as a sex chair. The man is used as a fuckbuddy, but treated worse. Like an inanimate object. Like a chair.
Pete: "mate so she just rode you and left without saying anything?"

Alan: "yeah"

Pete: "ha. Dickchair."
by Deardaniel July 19, 2013
 
2.
What one surfer guy calls another guy after he gets burned by a girl on a wave. A signal to quit surfing for the rest of the day.
Hey dickchair, you should go in; you just got burned by a girl.
by Jessbunz May 14, 2011