My wife (a.k.a., She Who Must Be Obeyed) is a veritable Yogi Berra when it comes to malapropisms and otherwise generally abusing the English language; thankfully, the resemblance ends there.
Her most memorable malapropism being:
"Hindsight is 50/50."
Yesterday she called me at work and laid a new one on me:
"I love hearing your smile."
She's delightfully weird.
I'll update this post as I remember others or as new ones are mangled.