She has a terrible problem
with moisture-induced glitter CLUMP.
The Big Bang Theory Season 2, Episode 18
...he never would have found
that stupid little CLUMP of cosmic schmutz.
The Big Bang Theory Season 2, Episode 4
Really, a walking
CLUMP of swamp grass?
The Big Bang Theory Season 11, Episode 12
They dance, they sweat, they CLUMP.
The Big Bang Theory Season 2, Episode 18