A self-inflicted Sweltie
often used in email by way of a cc or bcc to oneself.
I gave Mango so much shit about his Mass Hickies and Swelties that I told him to take his own medicine and cc himself to see how it feels. After giving himself a Self Sweltie, Mango reported that his self-inflicted welt felt like he’d been scrubbing his ass with sandpaper for a week. He immediately ran to the drug store for an ice pack and some salve.