a tumbling skill.
its a back flip with your knee's tucked into your chest.

When a jacked guy is wearing a tight shirt, then subtly stretches out his arm. He makes it look nonchalant but the main objective is to raise the sleeves and show more bicep, without looking like a d-bag. This can also be performed with both arms at the same time, which is appropriately called a "double tuck". The worst tuckers will still perform the action when wearing a tank top. They will also find subtle ways to tuck their sleeves up, for example when reaching for their drink, or taking a cigarette out of the pack.

A dorky, white male who is obsessed with computers and enjoys proving others wrong. Aslo known as 'moneybags,' proves to be very stingy, may or may not enjoy the company of very extra large women, and is allergic to ricotta.

When a Pre OP transgender woman wants to hide the bulge of their penis they Tuck.

A tuck is a procedure that is performed when one's scrotum is far too large for the testicles they contain. The excess bag is folded or "tucked" upwards and then sutured or stapled in place. In addition to being the name of a medical procedure the word can also be used an an insult. This insult can be used when you detect the sand in someones clam or they are such a douche you can assume that its because they are tripping on their sack.

To leave a place, exit.

having tucks means being able to roll a joint, blunt, spliff etc nicely