When someone has so much swag that the onlooker feels like they were hit with a grenade of pure swaggage.
Jeff: Hey man, you heard of that mofo Tyler the Creator?
Cliff: Yeah what about him?
Jeff: I saw a pic of him man. Felt like I was hit with a swag grenade!
Cliff: For serious???
Jeff: For definitely.
Christy: Hey you dropped somethin.
Robin: *looks down*
Christy: Your swag!
Robin: That's a lie! That onlooker there took one glance at me and she looked like she was hit with a swag grenade!
Christy: You're right. Forgive me.