YBYSAIA

YBYSAIA

An initialism of "you bet your sweet ass I am," meaning you can be absolutely certain that something will happen. Sometimes used ironically. YBYSAIA—I've been saving up to buy a ticket for months now!
Farlex Dictionary of Idioms.
See also:
  • CYA
  • DYOR
  • WTG
  • HBU
  • YKWIM
  • DNU
  • CBA
  • BTS
  • CTFO
  • AINEC