The Honourable Member who stands for Hampton Wick

1) a penis
2) a posh Londoner, especially one with a big member
Ivor Biggun used this term in his song "Hide the Sausage"

"See him over there? That's the Honourable Member who stands for Hampton Wick"
"Heard about him and his member"
"It's an Honourable Member and don't you forget it!"