Gno Sweat is a medal in Plants vs. Zombies: Battle for Neighborville. It is awarded for completing all gnome challenges in Weirding Woods.
The name is a pun of "no sweat," a phrase used to convey that one perceives no difficulty or problem with something, and "gnome."
Is that all they got?! Who knows! Gnomes are mysterious; no one knows what they got, apart from statues of themselves and big-time anger issues.