A general insult , a bit like calling someone an idiot. However it can also be used to describe or insult somebody who thinks of everything as a business deal, or somebody who is just wealthy in general.
Tim: Harry keeps showing off about how expensive his PC is.
Will: Yeah, he has that big-ass house aswell.
Tim: He’s a bit of coinhead.
Will: Yeah, he has that big-ass house aswell.
Tim: He’s a bit of coinhead.
by ubadmeme August 25, 2021