rucsacker

Someone distinctly lacking self-awareness. Like a person who comes onto public transport wearing a rucsac and doesn’t realise that he’s knocking into people behind him every time he turns around.

In his own world.

Quite possibly on the spectrum.
Don’t pay too much attention to Joe, he’s just a bit of a rucsacker. He often has no concept of the effect he has on people with the things he does or says. You’ll get used to it.
by Stivchik April 27, 2019
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