get together with a group of friends on the last day of school before winter break and exchange sweaters
friend: "its share a sweater day, lets exchange sweaters"
other friend : "dang ok"
to wear exotic knit sweaters, preferably from the 1990's, with extreme levels of confidence. (To exclude any and all turtle necks). Usually acquired from thrift stores, or unconscious homeless.
Did you see Micah's sweet knit sweater? He was sweater swaggin' hard!
You missed out, we were sweater swaggin' it up at the bar last night.