Somebody who lies about being more knowledgeable about something because they saw you talking about it. Usually by one upping you as a fan of an something. Short for Sophomaniacal Poser.
Person 1: hey look at this cool video about something I like
Person 2: oh yeah I saw that like a year ago.
Person 1: I literally introduced this to you like 2 months ago stop being a Sophoser.
When you win at street fighter at the same time a girl is sucking you off, so you cum so hard it forms a vacuum in the tip of your cock that implodes pulling all your internal fluids and organs out of your body in a massive shot.
it took weeks to deep clean his room after he pulled a Dirty Mondy.