Ahem

Interjection

 * 1) (onomatopoeia) the sound of a quiet cough or of clearing one's throat
 * 2) an exclamation or cough to get attention
 * Ahem! Could we please get started?
 * 1) an exclamation of disapproval or annoyance
 * Ahem! In case you didn't notice, I did my share, too.
 * 1) an exclamation to indicate sarcasm
 * I really (ahem!) liked the chocolate broccoli surprise.

Noun

 * 1) A use of the interjection, ahem.