"Talk'nt" is an unconventional abbreviation for "Talk at night." Someone will usually use "talk'nt" instead of the full sentence when tired and/or desperate.
John: Please talk'nt with me on the voice channel!
Catherine: John, I told you that I am too busy to talk tonight!
Catherine: John, I told you that I am too busy to talk tonight!
by ZoomerRL May 26, 2021