Well I don’t think you really needed to google to get the punchline. Seriously, it’s Barney telling the joke so you know he’s referencing his penis in some way. Combine that fact with the word jam and it’s just like putting two and two together! It’s a funny joke. Not the dirtiest. Also not very difficult to figure out on your own. You were very helpful concerning the info I was actually looking for though. I was interested in finding out if both girls were actually pregnant at the same time through production. I must say, as cool as that is the producers must have had a hell of a time pulling that off. My hats off to them. : )