Despite repeated warnings, the debate participant continued extravagating, steering the conversation into elaborate speculations.

He extravagated from the original topic so thoroughly that no one remembered the point he was making.

When the historian extravagates, the lecture drifts into charming but irrelevant anecdotes.

Her extravagence strained the household budget.

Despite his warnings, the family continued their extravagences during the holiday, draining the savings account.