This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

v. Present participle of bobble.

"While the field was exploding behind the leaders, Anthony attacked Scherz with seven laps to go, and just then the Swiss was in all sorts of trouble, bobbling in a few places and apparently suffering from a mechanical."