And the presenter in question was Maria Shriver, AKA Mrs. Arnold Schwarzenegger, so you know she's used to handling difficult situations which should tell you all you need to know.
Dunham was on NBC's TODAY show this morning to talk about the final season of HBO's 'Girls' and started off the interview with an absolute clanger by throwing the word 'penis' right out there before she said anything else really, and then defended herself by saying "she's going out with a bang".
Shriver didn't even attempt to come back from the shock of Dunham's choice of words, and Dunham just kept the snowball rolling downhill, first thinking she was off air before being corrected and peace-ing out. It's quite a lot for 75 seconds.
WATCH: We don't know what happened here... cc: @lenadunham @mariashriver pic.twitter.com/g11yup4Yqk
— TODAY (@TODAYshow) February 10, 2017