Twaterboarding
When a woman ejaculates into another persons nostrils; in essence waterboarding them with her twat.
When my girlfriend was riding my face, she gagged on my cock and ehaculated into my nostrils, thus twaterboarding me.
Twaterboard
Riding a person’s face in such a way that airflow is extremely limited, inducing feelings of panic similar to being waterboarded.
She started soft man, but then started grinding hard, twaterboarding me until I almost passed out.