The mating call of a rare bird that inhabits the car engine. Identified by a loud screeching sound upon ignition (not to be confused by a worn out engine belt)
"Did you know that your car is making a loud screeching noise?"
"Yes, I think it's a red-tail piston bopper.
It's a mating call."
"Yes, I think it's a red-tail piston bopper.
It's a mating call."
by Flighty January 31, 2019

by Abby Dude February 5, 2018

by PeakSunsSelfDoubt<3 December 15, 2021

What an anxious/impatient youngster would logically want to know in instances when his parent promises a certain action/food/relief/entertainment "in two shakes of a lamb's tail".
Cranky child: "Are we there yet?!"
Parent driving (cheerfully): "Oh, no worries --- we'll be there in two shakes of a lamb's tail!"
Cranky child: "But how often does the lamb shake its tail?! Oh, sure --- a NORMAL AND ALERT lamb probably "flutters its little stumpy thing" quite regularly, but if the lamb is asleep or not feeling chipper, its behind-flipper might not move much at all, and so it might take HOURS for it to jiggle even ONCE, let alone TWICE!"
Parent driving (cheerfully): "Oh, no worries --- we'll be there in two shakes of a lamb's tail!"
Cranky child: "But how often does the lamb shake its tail?! Oh, sure --- a NORMAL AND ALERT lamb probably "flutters its little stumpy thing" quite regularly, but if the lamb is asleep or not feeling chipper, its behind-flipper might not move much at all, and so it might take HOURS for it to jiggle even ONCE, let alone TWICE!"
by QuacksO July 10, 2024

Dude, did you see Shane Oniell's switch flip back tail slide switch bigspin flip to regular in his New Years Resolution video?!
by sarahpalinsdog February 16, 2015

When you have your back to your partner but you put your finger on ass like a tail, and your partner grinds on it like it’s your dick.
by Dax_inferno May 15, 2018

The backside equivalent to the 'Snail Trail'. A trail of hair formed up the back leading from a typically hairy crack. The hairier the crack, the more substantial the Snail Tail.
by ChillSloth2 March 12, 2022
