swamp check 

The act of checking ones ass crack and general crotch area for sweat or other moisture by visiting the bathroom and swiping the area with toilet paper, paper towel, tissue, or other form of absorbing material. See swamp ass

After an evening of dancing at the club on a hot summer night Darrell heads to the bathroom for a swamp check.
(in the unlikely event that he takes home a woman and gets lucky) He hopes to avoid any embarassment that could arise due to the swamp ass and funk that has accumulated in his crack and crotch.

swamp check by m chen May 15, 2008

check out swap out 

When a shopper fills their cart with anything that looks interesting or good, giving absolutely no thought to the cost of these things. They proceed to the check-out lane and hold up the line as they ask the cashier to scan different combinations of items, until they finally decide on a group of things that they are happy with *and* can afford.

While most people with a limited amount of shopping money would take the time to add up prices in their mind/on paper/on a calculator, and estimate their total, this person seems to believe that they can grab whatever and it will just magically work out somehow. No matter how many times they leave without everything they selected, they will always try it again next time.

After watching the cashier scan four items for the current customer, only to remove three and then be asked to scan two more, Jim realized that this check out swap out was going to take a while.

check out swap out by DobbyCanOnlyBeFreedIf October 9, 2013