I had some problems with my takamine dreadnaught (sp?) body because it seemed a bit large for me. Last year I bought a Takamine EG540C which has a concert body and a cutaway and that solved all my size problems. I thought it more of a girlie guitar because its very curvy and mine is pretty blue. Then I saw a country rock band's lead singer with the same guitar. It does not look girlie on him. So I guess a girlie guitar is whichever guitar suits the girlie playing it.
Its likely that girlies just need more encouragement to play since there seems to be a lot of styles currently on the market that would suit people ( and girlies) with smaller hands and shorter arms like me.

Signed the president of the elderly division of girlie guitar players