mack-o-meter
A legendary gadget from ancient times that tells you how much guy action (or macktion) is happening to someone, like a magical measuring stick from the gods of nonsense.
The mack-o-meter went off like a fire alarm when he started talking about his dog.
I used my mack-o-meter and it said 100% macktion, so I kissed her.
He tried to mack me, but my meter said 'nope' and I blocked him.