Having sex with a female during the time she has her period, only finding when you pull out that you have blood all over ur dick, kind of reminiscent of a Dagwood Dog
"Dude, you do know she just had her perioddon't ya?", "Nah mate I didn't, but she gave me a dagwood dog tho
slovenly; ill prepared; lackadaisical.
A "dagwood like" person would show little or no attention to details nor does he/she clean up after themselves.
Coined from character of the popular syndicated comic "Blondie" who would always come home throw his clothes around and was never prepared.
You're always running around here like <Dagwood>. Nothing organized and everything is a mess. Its no wonder you can’t find anything! Come on... get it together.
Don’t pull that <dagwood> shit! You better throw those clothes in the hamper before you leave up out of here!