Possible Clues:

• Fruit machine feature
• Prod; reminder
• Poke fun, you said, pinching wide bottoms
• Reminder: start to get undressed?
• Remind gently
• Elbow’s good in, eg, Goya’s Naked Maja
• Prod naked figure holding Gorgon’s head
• Poke with the elbow
• Wearing nothing to protect onset of golfer's elbow
• Elbow say brownish, seen from underneath