cue the deer
A prompt to pull out all the stops, in an effort to impress someone.
The expression "cue the deer" comes from Funny Farm, in a scene where a couple were showing their home to prospective buyers. The sellers wanted to make their home as attractive as possible. As the potential buyers were approaching the home, Chevy Chase's characters says "cue the deer" into a walkie talkie and a small deer is released from a cage and scampers across the lawn, charming the socks right off the buyers.
cue the deer
the moment when something so ridiculous has happened that nothing else can faze you or be weirder. Taken from the Chevy Chase movie "Funny Farm."
"I just saw twenty clowns in wheelchairs rolling down broadway. Cue the deer."