Related Clues:

• Might be Des is unable to sing with this
• Inclination - or insincerity - to inability
• Not sincere - just not able to be
• Not sincere sort of a bile that sounds as if it's flowing
• Des would be unable to do this when his voice broke
• Back the artist got with the jar gone, in a manner of speaking
• It's so insincere it is not 33 down
• Unable to be so insincere as this
• 'I'm busy then'
• Not able to be so insincere
• Isn't capable of
• Specialized patois
• Professional slang
• Hypocritical or insincere talk
• Try to acquire outward skill in slang