A person who flirts romantically on a daily basis. Or a person that shows P.D.A - public display of affection. Also a cake boss can be someone that uses pick up lines alot. also when you see a cake boss let them know that you notice them by saying: bew bew bew bew.
will: dude did you hear blakelys getting married!
me: damn dudes an cake boss!
When during sex a guy pulls out and surprise cums on his partner's face while smearing it around, as iffrosting a cake, the yells "Hoboken style baby!"
I gave my girl a cake boss last night and now she won't talk to me.