When something is dead cert gonna happen.
Can also be referred to as "hundo billy p's"
EXAMPLE 1:
Man #1 "Yo bro, you coming out tonight?"
Man #2 " Fo' show dawg, hundo billz"
EXAMPLE 2:
Man #1 "Yo bro, you coming out tonight?"
Man #2 " Hundo billy p's, I'll be there dawg!"