She's from the Progessive insurance company commercials. He's saying he likes that woman from the commercials.
Nerdy is an immediate turn off for me. Unless its like the unassuming hot nerdy. Thin and tall with big glasses and long straight hair. Mmmm
the commercials are annoying and she's really not that great looking, but she does have that undefinable "i want to put my dick in her for no apparent reason" quality.