Meaning of Aoharu(アオハル)

Aoharu(アオハル) is from Seishun(青春) which means youth or springtime of time.
In kanji, there are two ways of reading: kun’yomi and on’yomi. When “青春” is read using kun’yomi, it is pronounced as “aoharu.”
This is a kind of slang.

Example Conversation

A: Guess what! Ren asked me for my contact information!
B: Oh, sounds like Aoharu.

A: 聞いて！レン君に連絡先聞かれた！
B: アオハルっぽいねぇ