Phrase 'make out' (US english)

Hi guys,

can you please help me with the phrase 'make out' in the following context.

Girl is describing what was happening at her house last night..

Girl: It wasn't really a party. More like a (?) make-out(?) session.

Cop: (suprisingly): With alcohol and joints?

Girl: We were having fun. My mom didn't know lynn's parents were out of town.

My first idea was that make-out session = make over session here....Please is it used in that way

in the US or Canada? Or does it mean simply 'hang out' party?

thanks a lot in advance.

Tomas