a hott woman who happens to be pregnant
if Eva Lonoria was pregnant, she would be a "milf in training"
by kenny callinan March 29, 2008
Get the milf in training mug.
An attractive woman who does not have any children yet, but hopes to someday, so she can become an actual milf.

See Britney Spears
Britney Spears was photographed wearing a T-shirt that said, "MILF in training"

What a stupid whore.
by S_t_G December 26, 2005
Get the milf in training mug.