The act of farting while straddling your partner's face. Also known a the Clammy Pagoda, the Dusty Pyramid, or the infamous Hawaiian Volcano.
After an awesome dinner date at the local Mexican restaurant Vanessa was enjoying a ride on John's face. Unfortunately for John the extra plate of jumping beans didn't sit well with Vanessa and she proceeded to give him a full on Steamy Teepee. Poor John!