buttonhole - to stop someone for an informal conversation
rigmarole - lengthy and complicated process
kosher - legitimate and proper
rabbit - informal chatter
witter - speak about trivial things
beatific - feeling very blissful/ happy

Got from Yes Minister - Jobs for the boys.

"... certain projects have certain aspects which, with sensitive handling, given reasonable discretion, when events permit, there is no prima facie reason why, with appropriate give and take, if all goes well, in the fullness of time, when the moment is ripe ..."
- Bernard Wooley from Yes Minister