No, he means something like a one hitter. To answer the question, no, a sneak-a-toke is not really smokeless. Typically they just hold a little amount of bud, enough for one hit. So, after you hit it there's not extra smoke from the bowl or joint still buring. Or, they'll have a little cap that pretty much prevents smoke from coming out after you hit it. They're also small and don't look as obvious as a pipe. You still have a lungful of smoke to deal with though. You could probably get away with smoking one while walking through a(not too crowded) park or somehting like that but you still wouldn't be able to blaze up in your room or other enclosed place without filling it up with smoke.