"Galoot" is an old word used, primarily in Scotland, that means a person
with an ungainly, cumbersome, and clumsy personality.

also galute

1)n. a big, dumb, rather oafish man
2)n. description that combines the worst aspects of being lazy and fat
3)n. a combination of 1) and 2)

The word galoot is rarely used completely seriously. Instead, it is usually used as playful exaggeration or in self-deprecation. On those rare occasions when it is more directly applied (to others) its light nature gives it the form of mild reproach.

Big, dumb individual. An oaf.

A devastatingly handsome, crushingly intelligent and bitingly witty man.

A big hulking skanky man whose often clumsy -'first seen on Ren and Stimpy'-

someone who profers to use old hand tools instead of modern power tools

idiot that has no idea what he's doing, and someone who changes themselves (physically, sometimes mentally) during a relationship