Ladderhead
A Ladderhead is a sucker who lets others climb over them so they can get to the top while the Ladderhead gets stepped on and left in the dirt.
My boss is a Ladderhead. He lets me do all the work so he can get a promotion.
My friend is a Ladderhead. She lets her boyfriend cheat on her so he can look cool.
My mom is a Ladderhead. She lets my dad take all the credit for fixing the roof.