flassing is recommended for people who have a great deal of things stuffed in or up their cracks that they become stiff and obnoxious
to clean the crevice of someone's posterior with floss, spatula, tumbleweed, or any other implements suitable for the task
"flassing is recommended for people who have a great deal of things stuffed in or up their cracks that they become stiff and obnoxious" What is the definition of "flassing"?