A fork of Rural Dictionary
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.
when you're a third wheel for awhile but eventually start dating one of the couple, causing the couple to break up
dang you really went and stole my girl with that third wheel and steal