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1.
(noun)
a term of endearment; especially useful when reprimanding someone you love.

(adj.)
good for punning on the term "grub" as food or bugs.
Haruko: Erin, you lil grubshit. You so cute when you sleepin' but we have to work! Wake up, grubshit!
+++
Brenton: ugh, this is some jank ass grubshit that scrubgrubs didn't clean up!
Mitchelle: yeah, that is SO grubshit.
by Hashitmoto May 04, 2011