Top definition
Combo of bitch + Eilish and meaning a typical diehard fan of that dead-fish-eyed,bushy-browed hoodrat who uses her own green snot to color her hair.Can be male or female or any other supposed gender,usually under 18 and with a tendency to wail like an animal caught in a trap whenever someone doesn't worship their idol or agree with every booger of wisdom she slurs from her drooling slack,jawed mouth.
"My 15-year-old cousin locked herself in her room and bawled for nine days then threatened suicide because I said Billie wasn't God...she's a real Beilitch."
by Nun_Yer_Bizzy May 05, 2021