0 a person, usually a man, who is not very intelligent or attractive, or who has nothing special about him: --
that cliche of a wedding where the woman obsesses over the details while her schlub boyfriend just doesn't get it
The baseball team has an open tryout, an audition where any schlub has a chance to make the squad.
He was like the schlub who explains to the cops he was only holding the bag of Rolexes until the thief came back.
He's a pathetic and lonely schlub aching for a little companionship.