What does the sentence mean?

China
July 22, 2011 10:17am CST
When I watch a movie, a man in a pub said" Watch my pint, and I'm off for a slash"."I'm off for a slash" what does that mean?
1 response
urbandekay
@urbandekay (18278)
•
22 Jul 11
It is British slang for going to the toilet all the best urban
GraceChen03
@GraceChen03 (73)
• China
22 Jul 11
Thank you. I guesses it was British. Because the movie is British.