Pulsing Pebble

The sensation that (we) women often have after being aroused to the point of a swollen, throbbing clitoris without orgasmic relief.
The female equivalent of what men call "Blue Balls".

-I heard Steve-o slept at your place last night... how'd that go?-
"Please don't even ask, it was the pulsing pebble all over again."

-Ouuuch! Isn't that the third or fourth time?! What the hell is his problem?-