What is The Might-as-well Shave?
1.
when a guy is balding or his hairline is receding, so he just shaves the whole thing because he'd "might as well" just shave the whole thing.
jane: "whoa! what happened? your comb over... it's gone!"
john: "yep, I finally accepted the fact that I'm no
Amy Winehouse , and went for the might-as-well shave."
See