Sharpie Joke- I Don't Get It!?

I've read Beautiful Creatures 3 time by now and I STILL don't get the sharpie joke. it reads:
"every one of the cheerleaders who dressed up as Lena had somehow used a Sharpie to draw the innocuous crescent moon on her face, instead of eyeliner. Cheereladers. The jokes were endless."
I DON'T GET IT!!! (But I have the feeling it is very obvious and I'm just not getting it~you know that twinge like you're SO CLOSE to getting it, but just aren't there yet~)
 
Back
Top