A paramotor is a 2- or 4-stroke engine with a propeller, frame, harness and connection points for a paragliding wing. Its purpose is to launch a person into the sky, like so:

I fly! Excellent video, training and sunrise coffee by Aviator PPG where I am having no fun at all. #jklol #icarustrophy #iamonewiththeforceandtheforceiswithme #ppg #paramotor #flyozone

A post shared by Lara Kjeldsen (@larakiyomi) on Feb 14, 2017 at 5:08am PST

Long story short, it’s a lawnmower engine with a propeller, seat and wing attached. They fly about 20-25 mph, generally around 500 feet above the ground or so. You can go faster or slower, higher or lower, but that’s the gist of it.

The U.S. Powered Paragliding Association has more (and actually serious) information at www.usppa.org/about-ppg.