To be completely overwhelmed by the situation at hand
Josh was a slow learner and had heaps on trying to learn too many new skills at once
A horny little divil mad for a shkelp of pints. Usually shite at pool.
Hey that guy just lost a game of pool! Such a Heap O Clay!
It is one who sucks at everything
Gianfranco is sick a rubbish heap!
Ye might even be a heap and a half!