When you Shit (hence the "Sh") on your girl friends noggin aka head. (hence the "nogg")... Therefore alleviating (hence the "al") her need for a Shnoggal.
Dude I ate a lot of food for dinner last night and gave my girl the biggest Shnoggal of he life!
During Sexual Intercourse, when about to jizz, pull you dick out and jizz in between the girl's boobs.
Guy - oh yeah baby, want the cream filling?
Girl - oh yeah, give it to me nice and creamy!!!
the rest is pretty self explanatory.
When a girl spits on your dick (the outer layer of the Corn Dog).
PERSON 1 - Dude, Jessica just gave me the best corn dog in the world!
PERSON 2 - Yeah man I know, BJ's and Corn Dogs are her specials!