Army crawl
Also called army crawling, army crawled, army crawler, commando crawl, commando crawling, belly crawl
An army crawl is a baby moving along on their tummy, pulling forward with the arms while the rest of the body trails behind. Parents also call it a commando crawl or belly crawling.
How it's said
...I still "army crawl", usually when someone is knocking at the door that I don't want to see.
A combination of army crawling and rolling got him most places he wanted to go.
My son's preferences were: army crawl, full crawl, cruise and then walk.
Who says it
In the UK it's often called a commando crawl, the name NHS leaflets use.
Where it came from
Wiktionary records army crawl as a verb: to crawl using only or mainly the arms, with the rest of the body trailing behind. Both army crawl and commando crawl borrow their names from the military.
Researchers tend to say belly crawling. When baby movement researcher Karen Adolph and her colleagues followed 28 American babies in a 1998 study, about half started out with some form of belly crawling.