Some of these old threads on TMF are just as fun now as they were before. I don't know for sure what comes out of my mouth, but can report on what others do usually in a lame attempt to stop the tickling. After my wife and I were first married when I sensed her mother was just a bit too smug for her own good I loved to pin her down on her own living room floor with her arms over her head under my legs.
Her ribs were soooo ticklish it was pure tickle fun to see how desperate she became usually in the first few minutes of my rib tickling. She was fifty five years old the first time I tickled her. I was deliberately driving her crazy that night and eventually asked if I stopped would she be a good girl?
She managed to take in a thimble full of air so she could scream, "I'll be a good girl! I promise!"
When I finally stopped tickling her she just sat there on the floor and leaned against the sofa, and she was a perfect mess. If looks could kill...she sat there protecting her ribs with her elbows but much too late. She looked at me slowly shaking her head and finally just started giggling.
I never knew what the neighbors thought. I was never very careful about closing windows.
A few ticklings later I had her in the same spot and was driving her just as crazy and after several minutes I think I hit on her most ticklish ribs on both sides and she forced out one of those try-to-scream-stuttering laughs gasped in some air and screamed, "You're supposed to tickle your wife!" As she let that hang in the air I kept rubbing those ribs, and my wife said, "Mother!"
The things that come out of a woman's mouth when she's getting tickled make the tickling that much more fun.