Fridge: My Little Pony: Friendship Is Magic S1 E21 "Over a Barrel"
Fridge Brilliance: There appears to be a writing slip when Twilight says "anybody" instead of "anypony," until you realize she's referring to both ponies and buffalo.
The infamous "wingboner". Watching the show further indicates that it's actually an instinctive threat display, rather than an erotic one. Avians flare their wings when startled. Dash was horrified along with everyone else rather than turned on.