Hulloa! How are you doing?

Hulloa! Is anyone there?

She hulloas her friends every morning.

He was hulloaing at the top of his lungs.

He hulloaed at his friend from across the street.

The room was filled with hulloes as people greeted each other.

There were so many hullaballos at the party last night.

They hullaballos all night long.

The hullaballo at the party was deafening.

They hullabalooed all night long.