It's a thick milkshake, Friendly's is a chain of sit down restaurants, they serve food but most people know them for their ice cream.

That's the worst reason 💀. My mom would do the exact same thing

Is your mom still a piece of shit to this day, or have her beliefs changed with the times?

Either way I’m sorry you had to grow up around bigotry like that

In my family, "dribble" was an oft-used cutesy synonym for "drool". It reminds me of babies with food and saliva oozing down their chin. That wasn't explicitly my resistance to saying "Fribble" though; it just felt awkard and childish. We didn't have "cringey" as an adjective then - but in retrospect, cringey is how it felt.