Spiffy Nathaniel
A Spiffy Nathaniel is when you decide to do hip thrusts with your barbell, but forget the hip thrust pad and leave a bar mark on your abdomen, making your SO think that they are being cheated on my a robot.
Man 1: Hey bruh, hows it go- oh, looks like you got a case of the spiffy nathaniels.
Man 2: Yeah, the wifes gonna be on the lookout for some imaginary robot lover
Man 2: Yeah, the wifes gonna be on the lookout for some imaginary robot lover