Swagerday, is a term for referring to Saturday. Swagerday is a day to celebrate your swag and show it off, while accumulating even more swag, to become the most swagtastic mother fuckers out there!
"what you doing this swagerday"
"you know getting my swag on, going to hit the thrift shop and some other place and pick up some more swaggerific attire"
"sounds pretty swagg, be careful you don't drown in that much swaggoo"