When you are on the level of obesity where your thong looks like a walrus flossing vigorously.
Yo daves girl has some serious walrus floss going on.
I need to head to the bathroom, I need to fix this walrus floss.
When a pair of underwear (primarily female) that are so tight you cant see the back of it.
Tom: I was fucking this fat chick last night and she was walrus flossing.
Yuro: Nice man! Wish my girl would walrus floss.