Is this girl really saying "NO" (girls only)?

I am the sorta guy that comes off as a pushy guy! A lot of girls say NO but i don't either get it...or my ego gets in the way or something (I think i have that short guy syndrome where we try to act big, im only 5'1") The other day I was hitting on Megan (she's hot) and she wasn't taking my advances and she finally said if I didn't leave her alone she was going to hold me down and fart on my face. Now i know girls don't fart at least in front of guys....so im sure she was bluffing...but is that a hard core NO she was giving me or was she being play full???