A Mother-in-law is one for whom there's nothing easier to find than fault, and nothing harder to keep than still.
Definition.com
Dad Joke.com
What do you call a blond mother-in-law?An air bag.
One-Liner.com
My mother-in-law fell down a wishing wellI was amazed. I never knew they worked
Dad Joke.com
What do you do if you miss your mother-in-law?Reload
Definition.com
A Mother-in-law is like the dry rot... far easier to get into a house than to get it out again.
Definition.com
A Mother-in-law is the only law under which you are assumed to be guilty until proved innocent.
Meme.com

See also
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