The definition of girl crush is a non-sexualattraction a woman feels for another woman. It's a phrase used in kpop.
Example: RYUJIN and YEJI OF ITZY, JENNIE of BLACKPINK, and more
usually when a girl wants to be exactly like another girl. not sexual attraction, rather just jealousy. simpily just wanting to be someone different. the song "girl crush" by little big town, explains the term too.
este: "whats wrong?"
betty: "i have a girl crush"
este: "oh.. so you're gay?"
betty: "no, i just want to be exactly like augustine."
When a girl (any age) has an innocent, non-sexual crush or admiration on an older girl. They can be famous or non-famous people, just any older girl who you admire!