Related Clues:

• Spontaneous
• Forgo the script
• Not practiced
• Type of measure
• Improvise on stage
• Seat-of-the-pants schtick
• Stray from the script
• It's made off-the-cuff
• Ignore the cue cards
• Avoid the lines?
• Temporary solution
• Temporary substitute
• Spontaneous remark
• Unscripted
• Remark that might get one in trouble