1. An opportunity to drink schnapps. i.e. Its cold outside - schnappertunity!
2. A party opportunity in which you can pour your friends schnapps. i.e. Hey what was in those shots?! / Peach Schnapps! / You asshole! / It was a schnappertunity I couldn't resist.
I ordered a hot chocolate and realized the schnappertunity at hand then ordered a shot of mint schnapps.