Bukkake refers to group scenes where several men finish on one person, usually as the closing focus of the encounter. In a gay context the term points to the group arrangement itself rather than to any particular act leading up to it. It sits close to plain cumshot material, but the distinction is the number of participants involved: a cumshot tag covers solo or one-on-one finishes, while this one implies a group. Adjacent vocabulary you may run into on nearby pages includes blowjob, threesome and anal, which describe what happens during a scene rather than how it ends.