Related Clues:

• Drop out of the conversation?
• Gloss over, vocally
• A drawler might do it
• Diesel engine's lack
• Say "y'all," say
• Quash, as opposition
• Lose a phoneme
• Skip, as a syllable
• Omit, like the "t" in "Swee'Pea"
• Walk through mud
• Drop, as a vowel sound
• Keep from spreading, as a rumor
• Engine valve
• Galley output
• Shorten, in speaking