It means someone who’s obnoxious or arrogant
LMAO this dumbass googled it and didn't even read the whole definiton.
Bobby you are a douchbag and it has nothing to do with arrogance, which you don't have because you are a loser and can't justify it.
And it has nothiung to do with being obnoxious.
You are a douchbag because you are an asshole troll to fellow posters with no cause, like you have nothing better to do.
Post a video from the gym, with you breathing fast and sweating, like you said you would, or don't post at all.
Do something man.