When a person makes plans and doesn't show up or does not follow through with the plans, they flop. This person becomes a flopmaster after not following through on a consistent level.
Alex: Hey man! I'm coming to visit you in three weeks!
Brandon: Okay, sweet!
*3 weeks later*
Alex: Yaaaaa. My mom said I have to work.
Brandon: Flopmaster.
Brandon: Okay, sweet!
*3 weeks later*
Alex: Yaaaaa. My mom said I have to work.
Brandon: Flopmaster.
by Sun-Maid Raisins September 21, 2012