if frogs had wheels, they wouldn't bump their butts

if frogs had wheels, they wouldn't bump their butts

A phrase that advises against wishing for impossible or absurd things to happen. A: "If only my parents would give me a car, life would be so much easier." B: "Yeah, and if frogs had wheels, they wouldn't bump their butts."
See also: bump, butt, frog, if
Farlex Dictionary of Idioms.

If frogs had wheels, they wouldn't bump their butts,

 and If a toady frog had wings, he wouldn't bump his ass.
Rur. It is useless to wish for impossible things. (Use caution with ass.) Tom: If I had two hundred thousand dollars, I could buy that farm. Jane: Yeah, and if frogs had wheels, they wouldn't bump their butts. Charlie: If I were rich and famous, I'd make people listen to me. Bill: If a toady frog had wings, he wouldn't bump his ass.
See also: bump, butt, frog, if
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • if frogs had wings, they wouldn't bump their butts (when they hop)
  • toady
  • if ifs and ands were pots and pans
  • (God) bless you
  • bless
  • bless you
  • bless you, him, etc.
  • if wishes were horses
  • I hope all goes well