A treesh is another way of describing a female as a hoe. A treesh is someone who sleeps with different guys everyday or every week. A treesh tends to expose her body, to attract the attention of men and lure them in. A treesh can also be a female who cheats on her partner with many guys every night and usually most are gold diggers. A treesh is someone who is "easy". Which basically means they are easy to get in bed with.
Friend 1: yo I was with s/n last night, she was wild