Definition from Wiktionary, the free dictionary
- In a babyish manner.
2008 February 10, Eric Wilson, “Marc Jacobs Play It Safe? Come On, Now”, New York Times:
- Marc Jacobs, wearing his Sunday best and still with blue hair, came out onto a concert stage in the 26th Street Armory not 10 minutes after his show was scheduled to start, waving his arms and calling out babyishly to the arriving guests, who included fashion plates like Victoria Beckham and Kevin Federline.