(pronounced: woo m-uhn- spleyn)
-verb (used with or without object)
to give an explanation for the motivation behind a certain action or statement that has nothing to do with the current situation but rather is related to something else that has happened very long ago in the past
Guy: "Why are you getting so angry? So I forgot to take out the trash today. Big deal!"
Girl: "The reason I'm so angry is because you always do stuff like this! Like the time we went to dinner and we ran into your ex-girlfriend, but you didn't introduce me! I felt so embarrassed and awkward but you didn't even care!"
Guy: "What??? What does that have to do with anything? Besides, that happened a year ago!"
Girl: "OMG, you are sooo frustrating! I shouldn't have to explain everything to you! You just don't get it!"
Guy's Friend later at a bar after hearing the story: "Dude, you just got womansplained."