Purse shake

All the loose weed that accumulates in the bottom of your purse

I don't get paid for another week so its knife hits and purse shake until then

Teapot shake

When urinating, and towards the end there is a reduction in flow rather than the expected abrupt end, resembling the dribbling from a teapot. Thus requiring a vigorous shake to expel excess liquid.

I'd had a few beers and when I went for a pee I had to give it a teapot shake

Teapot shake

When a male is urinating and towards the end it dribbles like a teapot, to then be rectified by a good shake.

"I'd had a few beers so went to the loo I had to give it a teapot shake"

Whatever shakes your coco

This is a phrase that often means whatever "feels right" or whatever "makes you feel good". -Aka "you do you".

"I am so into 'Vegetarian Progressive Grindcore'!"
"Whatever shakes your coco, bruh..."

Shaking the kettle

A dangerous thing to indulge in and not knowing the outcome of it

Mindys talking to this boy who is a mystery man who doesn’t express himself so she’s “shaking the kettle” not knowing if she’ll be burned or not .

Triple shake

The flicking of a nipple in a open palm up down motion.

Nick used the triple shake on a female while making out

But how often does the lamb shake its tail?!

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!"