To get drunk, hammered, pissed, or alternatively an event at which you get drunk, hammered, pissed. Therefore can be used either as a 1. verb 2. noun
1. Hey, it's Friday, come on round and we'll fill up.
2. It'll be a proper fill up on the weekend. They love the piss.
When a man injects semen into his womans vagina.
My girl is on the pill so I'm gonna give her pussy a fill up.