Something or someone who is just too cute. This is often said around children and infants (especially with super chubby cheeks) People use this word to describe how cute something or someone is and how much they wanna just squeeze their cheeks off!
OH, MY GOD, SHE IS SO CUTE! HER CHEEKS ARE JUST SO SMIDGABLE
SMIDGAF stands for "Sorry Mate I Don't Give A Fuck" and is usually used by cagers when a cyclist his about to cross his junction, sees the cyclist yet pulls out anyway. Generally known as an asshole.