A boy from Africa who travels far distances to meet his one, true love. He may send you the occasional bouquet of flowers or box of fine Kenyan chocolates just so you know that he loves you. Bertrude is adored by all.
Anna: "Oh my goodness, I just got a box of truffles in the mail from my man!"
Anna's Friend: "Why, his name must be Bertrude? Right?"
At an airport:
Girl (talking to stranger): "Yeah, so I'm waiting to pick up my boyfriend. He came to visit me from so far away!"
Stranger: "Gotta love them Bertrudes."
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"