chum up with

chum up with someone

to become friendly with someone. He seems to have chummed up with Fred. Juan quickly chummed up with all the guys in his class.

Name	Pronounced	Usage
Vasilisa	vah-see-LEE-sah	Russian
Samia	-	Arabic
Carole	['kærəl]
JiŘIna	-	Czech
Margrethe	-	Danish, Norwegian
Kurush	-	Ancient Persian