"Aye, you would," Jamie replies with certainty. "All ye women are part of this giant conspiracy." He gestures rather randomly at the room by way of example. "And part of that is to get us men in trouble with other women."

And Captain Picard, apparently. "Oh. Well, if it's a saying from a planet, that might make sense, even if he wouldn't say it."

Yes, Jamie doesn't believe that chick is a slang word but is starting to believe that a line from pop culture is true.