Not a catchphrase, per se, but I will often refer to the Aerosmith Rock 'n Roller Coaster as the Air Supply Rock 'n Roller Coaster.
You see, my father and mother were driving down to Florida once and, having similar tastes in music, Dad asked to borrow some CDs from me, one of which was Aerosmith's greatest hits. While driving down, Dad asks Mom if he can put in some Aerosmith. She says, yes, she likes Aerosmith. So, he puts it in and immediately Mom starts frowning.
"What in heaven's name is this?"
"Honey, this is Aerosmith."
"This isn't Aerosmith."
"Honey, trust me, this is as Aerosmith as it gets."
"No it isn't, Aerosmith sings... Oh, Air Supply. That's who I was thinking of. That's the group I like."