To replace another as a third wheel. Usually done against the will of the original third wheeler. The logical extension of the cock block to third wheeling.
I was going to go with Ryan and Molly to the movies but they went with Josh instead. I can't believe Josh would wheel steal me like that.
by dontrush July 15, 2011
when you're a third wheel for awhile but eventually start dating one of the couple, causing the couple to break up
by masterofspite December 04, 2023