ahem

(onomatopoeic)The sound of a quiet cough or of clearing one's throat.

Demanding attention.

Ahem! Could we please get started?

Expresses disapproval or annoyance.

Ahem! In case you didn't notice, I did my share of the work, too.

Indicates the speaker does not wish to be perceived as rude, often intimating an impolite meaning to a third party that the speaker is not addressing.

Indicates subtle sarcasm, polite lying, or euphemism.

I really (ahem!) liked the chocolate broccoli surprise.

Indicates an unintentional or inappropriate pun.