he also makes an appearance in the Bloodhound Gang song titled "Mope"
PacMan: Yo yo yo yo! What it is motherfuckers!
Dude 1: Aww shit... here comes PacMan...
Dude 2: Hey PacMan. What's up?
PacMan: Me, you bitches! I'm high on crack! Wanna freebase?
Dude 1: No PacMan! Drugs are bad...
Dude 2: Nope. Can't help you man...
PacMan: Pussies...*freebases crack* Whooooaaaaaa!!!! HOLY SHIT!!
Boxing announcers and match commentators usually call him by his nickname "Pac-Man" instead of his surname "Pacquiao", since it's easier to pronounce.