What About Bob?

What you see below is the current, unabridged Dictionary of Liam.

Mom = Mom
Dad = Dad
Gog = Dog
Nan = Banana
Ye-ie = Hi

As you may have guessed, speech is not Liam's preferred method of communication. Hand signals and grunts are more his thing - and surprisingly effective. But within the last week or so Liam has learned a new word that has us stumped. Bob. We don't know a Bob. And we're pretty confident that if we don't know a Bob then Liam doesn't either. So we have donned our Context Clue Caps, and so far our efforts at translation have offered the following possibilities:

Bob = Grandma
Bob = Up
Bob = Hockey Puck
Bob = I would like a sticker, please.
Bob = Bye

It's not his fault, though. Obviously the linguistic nuances are subtle.