maskfish

someone who looks hotter with a mask on, but is actually uglier when the mask is removed.

Jim: I was at Starbucks and met this hottie in line.
Todd: Did you guys hangout?
Jim: yeah, except when she took her mask off, she went from an 8 to a 4.

Todd: ouch. looks like you got a maskfish
Jim: yeah it was rough. we still had unprotected sex in a parking garage stairwell
Todd: well this story had a happy ending after all!