The phrase "a chat on a" is correct and usable in written English.
It can be used when introducing a topic or subject that will be discussed in a conversation or informal dialogue.
Example: "We had a chat on a variety of topics, including our favorite books and movies."
Alternatives: "a discussion about" or "a conversation regarding".
It also prompted at least one person to travel to Harlem for a chat on a park bench with a perfect stranger.
What started as, in Brooker's words, him having "a chat on a sofa with Adam about our legs" developed into slick one-liners and teasing between friends.
He was also asked about the second paragraph in Michel's email, which said that Hunt and Murdoch could "have a chat" on a mobile phone "which is fine".
We are making progress on it!" Intel China chairman Sean Maloney said in a chat on a Chinese social networking site.
Our unassuming hero - who only took up rugby aged 17 - arrives for a chat on a windy Swansea day at a beach-front café with Keifer, his labrador, and a broad smile..
His chief writings are Keisō dokozui ("Poisonous Stamens and Pistils of Thorns"), intended for advanced students of Zen; Hogo-roku ("Record of Talks on the Law"), doctrines that "accommodate" Zen principles to local conditions; and Orategama (The Embossed Tea Kettle) and Yasen kanwa ("A Chat on a Boat in the Evening"), two works of practical advice.
They figured out a way to encrypt a chat on an Android phone by shaking it, taking advantage of the motion detectors in many smartphones.
I will have a chat one-on-one with a few of the guys about my experiences.
But VICE witnessed one sting in which a man was shamed after a chat on Grindr that commenced less than an hour before the bust went down.
(PO notes, 30-year-old man) While visiting one of the families, I observed that as we had a chat on general things, a young woman present (a niece to the family head) was uneasy.
When the family chatted after a meal, young women rarely contributed and did not look at their male relatives in the face, which would be perceived as lack of respect: While visiting one of the families, I observed that as we had a chat on general things, a young woman present (a niece to the family head) was uneasy.
