Mood Ring Face

Alright listen up, buttercup. This joke is sayin' that BlessedBrian's face turns blue when the speaker is around, like a mood ring. Mood rings change color depending on your mood, you see? But since blue usually means sadness, it's a fancy way of sayin' that the speaker makes BlessedBrian sad. And based on your grammar, I am very sad that you listen to jokes.