U
up for it -
to be willing to have a good time. Also for a woman to be sexually available.
uphill / upstairs gardener -
a male homosexual. The term is a reference to anal intercourse. I leave
it to your imagination to work it out.
up the duff -
to be pregnant, usually by mistake. A 'duff' is a pudding (usually plum),
so to be up the duff is to have 'a bun in the oven'.
Uncle Tom Cobley and all -
a phrase meaning 'everyone'. Can be used sarcastically as in "I bloody
turned up to find Uncle Tom Cobley and all there !". From the song 'Widecombe
Fair'.