My ungeeky boss likes to say "It's a trap" to my geeky workmate and me all of the time. We think it's nice that he's trying so hard. I printed out and gave him a paper Ackbar mask for Christmas.
I find the opportunity to use [Vader] Impressive. Most impressive. But! You're not a Jedi, yet![/Vader] from time to time.
I have a cousin with which I rarely communicate... but I always start my letters/e-mails/facebook pokes with: "You slimy, double-crossing, no-good swindler"
And I say "Who's scruffy looking" when my wife reminds me I need a haircut.