[bira]

Depending on the profession.

[vikrum]

To quote a wise man:

    It's not porn. xxx does not always mean porn. Sometimes it means Vin Diesel.

[PakG1]

The sequel was Ice Cube, I believe. :)

[vacri]

Or it's written on the liquor jug held by a cartoon hobo.

[vikrum]

Or it's a homage to this year's XXX Olympics.