Answer: yoohoos

AnswerCrossword Clue
YOOHOOS

Zesty greetings

YOOHOOS

Attention-getting calls

YOOHOOS

Informal greetings

YOOHOOS
Calls across the room
YOOHOOS
Calls: Colloq.
YOOHOOSCalls for attention
YOOHOOSCasual calls