1 definition by Oof McOoferson
When someone sings awfully, but don't realize how awful they are, because they have headphones in and they can't hear themselves.
Bruno: Yo, do you hear that girl singing over there? She sounds awful!
Freddie: She must not realize since she has her headphones in.
Axl: Yeah, she's totally singing A Crapella.
Freddie: She must not realize since she has her headphones in.
Axl: Yeah, she's totally singing A Crapella.
by Oof McOoferson May 1, 2018