a group of three people (usually male) who walk into a social event and all eyes are on them. they seem to attract everyone with their level of swagger. and all of their swagger combined results in the phenomenon known as the "swagtastic trio"
female 1- did you see Josh, Ryan, and Zach last night?
female 2- hell yeah they was lookin real fine..
female 1- they were so swagged out! i just wanted to drop my panties on site
female 2- we call that a swagtastic trio my dear, and yeah i wanted to drop 'em too