Flirting or being flirtatious.

"allow it" means to just leave something alone, or don't worry about it. People in West London say this quite often.

Talking sweet to someone you like.

1. To be in the honeymoon phase of a courtship or relationship; when a couple is engaged in public displays of affection and/or being anti-social by only paying attention to one another during a social outting with a group of friends. 2. When a guy or a girl chooses to spend time with a love interest over their friends. However, this term is more commonly used to describe men who become MIA (missing in action) after getting with a girl or getting into a relationship.

leaving a large group of your male friends, to go to another room and talk for prolonged periods of time with a girlfriend or girl you are interested in.

cup caking means flirting with another person doing anything leading up to, and excluding sex.

adjective: a word used to describe the act of talking on the phone with a significant other with romantic or affectionate content, usually with funny cute nick names or words.