Bob the Pervert?

OK, so I'm hung up on Bob the Builder. (See my previous Spud post.) But, I can't get past this. In Bob's "Build, Dig, Haul" DVD, it starts off with "Scruffy's Big Dig." Bob & the gang are at Mrs. Broadband's house fixing the bricks. It starts off like this:

Dizzy: "What are we doing today, Bob?"
Bob: "Mrs. Broadband's got a big bulge in her wall and it needs to be repaired."
Muck (laughing along with the others): "Where is Mrs. Broadband's big bulge, Bob?"

Now, doesn't that seem a bit odd to you? It's not like construction people are going around talking about big bulges that they need to fix. It's not a common term, really, now is it?

OK, so you're not convinced. Here are some titles of other BtheB shorts: "Lofty's Long Load," "Wendy's Big Night Out," "Travis Gets Lucky" (come on - how much more do you need?), "Muck's Surprise." And then I started looking at some others a little differently, too. "Bob the Photographer," and "Mr. Beasley's Noisy Pipes" to name a few.

I think something's going on behind the scenes that is a little more obvious than it needs to be.