Yup, Low side Generally equals bike simply sliding fairly painlessly out from under you in a corner. You can usually walk away.
Highside? Usually a Highside starts as a lowside slide, BUT the bike's tires catch before you fall into the lowside, they grip tight, stopping your forward motion as they are now pointing the wrong way given your forward motion. The suspension compresses to the stops, then violently launches you over the bikes centerpoint sometimes in spectactular fashion sending you sailing high into the air and crashing back down, only to then possibly get ran over by the bike that is now behind you waiting to drive you into the asphalt like a fuggin peg.