I saw this sentence while I was watching the 17th episode (Season 8) of *Modern Family*.

> 
> Bulldog drooled courses through his jowls.
> 
> 
> 

I was really confused about its meaning. To give you a bit of its context: 

Phill and Clair are reading an email that's sent from a university to inform their son Luke of their admission decision. This university is Phill's alma mater and its mascot is likely to be a bulldog, for Phill says:

> 
> Clair, I am as anxious as you are to find out if he's gonna be a
>  Bulldog like his old man.
> 
> 
> 

However, it turns out that Luke is not admitted. Phill's dumbfounded as he says:

> 
> What? He's a legacy! Bulldog drooled courses through his jowls!
> 
> 
> 

I know what each of the words in this sentence means, but this sentence just doesn't make sense to me. 

How can someone drool "courses" (which either means meals or a series of lessons) through his jowls?