Possible Clues:

• It's nonsense to sound as if this makes me come clean
• Insincere talk about optical lotion?
• The stuff presented to the viewer is nonsense
• Slangy nonsense or optical cleanser
• Is that the sound of me having a bath? Nonsense!
• Optic solution to relieve irritation - rubbish!
• An' I take a bath, that's just nonsense
• It's nonsense for you to say you take a bath, by the sound of it
• Sounds as if I have a bath,but that's just nonsense
• Insincere talk, or optical lotion