A "pregnant pause" is a moment of silence or hesitation in a conversation that creates suspense or suggests that something important or significant is about to be said or happen. Full definition
It does become an endurance test, as the show's lynchpin humor of pregnant pauses and long, drawn - out sections of pointless stories and other gags (dialing a long phone number, trying to break into a house only to take the key and leave without getting into the house, Meatwad's attempt to tell why Carl's life is worth living) become redundant and tedious. (markreviewsmovies.com)
Rickman slowly rolls his words in bile before, after pregnant pauses, he speaks in sonorous chilliness. (freeweekly.com)
When I called him to cancel our weekend brunch date, and told him why, there was this really big pregnant pause as I am sure he was trying to figure out how to answer my comment that I found out that he was married and I don't date married men. (datinggoddess.com)