First, stretch a mans jag hole or end of the penis. Insert a funnel and pour a solution made of water, crushed red pepper flakes and cumin down a mans urethra. And swish for 2 to 5 minutes. Then proceed to ejaculate in any fashion you wish. When the man blows his load it is a mexican cock sneeze.
Can also be used as a derogatory term.
She gave me a mexican cock sneeze.
That guy is such a mexican cock sneeze.