The Operation

Henry was a dedicated poker professional. Over the past fifteen years, he'd gotten married and was raising three fine children on his winnings. Content with the size of the family, he and his wife, Jane decided it was time for Henry to have a vasectomy so that they could look forward to traveling together after the children were grown.
Henry entered the hospital and was put in room 201. On the day of the operation, a frumpy overweight nurse went in to prep John for the procedure and while shaving him, she noticed that John had a tattoo on his privates that said "RUSH". The frumpy nurse just happened to be a poker player herself, and was explaining to another more voluptuous nurse what a rush meant in poker lingo.

The more voluptuous nurse, wanting to see the tattoo, went into room 201 on the pretense of doing additional prep work on Henry. Bending over Henry, with her cleavage showing, she piddled around long enough to see the tattoo.
Returning to the nurse's lounge, the voluptuous nurse told the other nurse, "I must have gone to the wrong room. The man I saw was a poker player, also, but his tattoo read "ROYAL FLUSH".