Weak.
Ineffectual. In the sense that if you held your
arm out like the
statue on top of the
Heisman Trophy, you still couldn't
break through a wall of
tapioca pudding.
It apparently also has connotations of homosexual behaviour. Imagine the stereotypical hand motions of a homosexual man. Lisp out "Oh, he's so ka-yoot!" while allowing your hand to fall from a palm-out, fingers-up position, to a palm-in, fingers-down position, right at the hyphen. You get the idea.