A friend on the first day of ground school broke the silence with
"I was f-ing this girl in the ass last night and she turned around and said 'the pain is excruciating!'. I said 'Excruciating, that's an awfully big word for a 10 year old'"
Then there's always the baby jokes, but considering our XO is a LtCol, very religious and has 3 daughters, I better stay away from those ones.
We had a lieutenant tell the joke,"How do you make a little girl cry again?"
"Wipe your dick off on her teddy bear."
The XO (4 daughters, very religious) had his ass after that. The lieutenant also got a call sign for it upon arrival at his fleet squadron.