Jobbing - feeding a wrestler to another wrestler. The wrestler is doing his job by losing to someone to get them over. Ex. Jack Swagger jobs to Fandango to try to get him to look like a good wrestler.
Kayfabe - What would happen if wrestling was real. Ex. In real life Randy Orton had to film the Condemned 2 movie but in kayfabe he was seriously injured by The Authority.
Over - When a wrestler has a overwhelming majority of the crowd liking them Normally shown by people buying their T-Shirts and everyone chanting their name and catchphrases. Ex. Daniel Bryan is considered one of the most over wrestler of all time as everyone chants his catchphrase (YES!) at almost every show even when he is not on.
Push - When a wrestling company gives a wrestler a chance to shine by putting him on feature matches and maybe even giving him gold. Ex. Zack Ryder's 2011 push gave him the U.S. Championship for 2 weeks but afterwards he faded into jobbing.
Intercontinental Title - The second highest title in the WWE right now. Currently held by Bad News Barrett.
ROH - Ring of Honor.
ROH Championship - The highest title in ROH. Currently held by Jay Brisco.