To pass wind with a sweet 'hammy' aroma.
Oh man! Which smelly fück's opened the ham?
A phrase that can be used upon unexpectedly smelling an anonymous fart smell to investigate who the culprit is.
Colin : Eeeeeeeeew!!!!! Who's opened the ham? Was it you you dirty little rotter? That's rank that is.
Bouncer : I'm afraid I'm going to have to ask you to leave sir, and advise sir that sir is no longer welcome in this establishment.