Snowblowing is a sexual act where one individual receives oral sex and the other partner keeps the cum in their mouth and then kisses the receiving partner.
Kinkly explains Snowblowing
Snowballing is similar to the practice of cum swapping. Snowballing occurs between two people only. The act is equally common among couples in the homosexual and heterosexual communities. It is important to note there is an increased risk of sexually transmitted infections associated with this sexual activity.