1. Any beer that is cooler than the ambient tempurature.
2. Being colder than you have ever been.
1. Neighbor: Hey bud I double dog dare you to give me one of those beers.
Bud: They're not cold yet.
Neighbor: I don't care, it feels cowboy cold to me.
2. I woke up this morning and my hair was frozen to my horses chest, it was cowboy cold last night.