The joke is that the woman is never lonely because she has 4 men in her life.
Each of the men’s name is bolded.
- Charlie Horse: A Charley horse is a muscle spasm that is typically in the legs.
She gets (wakes) up with a charley horse
- Arthur Itis: Arthritis is the swelling and tenderness of the joints in the body.
She spends the day with (having) arthritis.
- Will Power: Is when a person uses control to not do something.
She dines (eats) with will power.
- Ben Gay: Bengay is a cream that is used to relieve muscle and joint pain.
She goes to sleep with Bengay on her body.