did my snail just sneeze or poop or something?

my snail looked like he just sat up for like two minutes and i was watching him then it looked like he sneezed.. a bunch of stuff came jetting out from little things near his head... they looked liked a bunch of little bubbles?? he did this twice in the past hour.. anyone know what he is doing?
hes makin' babiez.

my sister has a few baby turbos in her 20 from a pair of snails we had in there :) apparently they were both wanting some offspring.