When someone or something is a full on monet they are pretty from far away but ugly from up close

EX: someone seems nice or pretty but is not a very nice person(vice versa)

the saying comes from the ICONIC movie Clueless

Cher—who is pretty much like "as if"—tells her, "She's a full-on Monet," and Tai is all, like, definition please, so Cher elaborates, saying "It's like a painting, see. From far away it's okay, but up close it's a big ol' mess."
Full on monet means that someone is pretty from far away but ugly from up close.
by Lillaaaa April 8, 2018
A.Someone attractive from afar, but when you get close you see that said person is not as attractive as they appeared from a distance. B.ugly up close

Derived from the painter Claude Oscar Monet's artistic style.
Tai: Do you think she's pretty?
Cher: No, she's a full-on Monet.
Tai: What's a monet?
Cher: It's like a painting, see? From far away, it's OK, but up close, it's a big old mess. Let's ask a guy. Christian, what do you think of Amber?
Christian: Hagsville.
Cher: See?

Clueless (1996)
by Mike Losquadro October 29, 2006
usually a person that looks fine or normal from far away but when you look closer they’re not that put together.

ex: clueless 1:27:32
cher: ugh she’s a full-on monet!!
tai: a monet? what’s that?
cher: well it’s like a painting see? from far away it’s ok, but up close its a big old mess!!
by nightingale ;) iykyk February 10, 2021