Examples:

• Anyway, Charmaine is a little under the weather right now.
• Your wife's under the weather, but you didn't want to miss it.
• I was going to work on my website, but Leon's under the weather.
• Frances has just been feeling a little under the weather, that's all.
• Father Tim is feeling a little under the weather today.
• A man needs a lot of fluids when he's under the weather.
• Well, perhaps I am a little under the weather.
• I'm just feeling a little under the weather.
• Harry's, uh, a little under the weather these days.
• I was just feeling a little under the weather, but nothing serious.