This Guy

Typically it's the person that always adds his/her/other opinion without giving it much thought so it comes out either as offensive, dumb or both.

Me; Hey bro totally getting that new apartment tomorrow, so get your stuff ready.

You: Awesome G you're going to load up our stuff in that U-Haul van you're buying as well?

Me: This Guy... (In my mind, "this idiot thinks I'm going to do everything. SMH.")