adverbial phrase. Essentially "trying not" or "trying to avoid" in standard English. The subtle difference between the slang standard English usages can be seen as follows: in standard English "not trying" simply means a failure to put forth any effort; whereas the slang meaning encompasses affirmative avoidance of responsibility, or steps taken to get out of an obligation.
When you aren't just telling someone what they want to hear, regardless of the truth.
When you're not praising someone to gain their favor or approval.
SImilar to: 'Not blowing smoke up your ass.'
Possible sexual reference, 'to smoke' is often used as a euphemism for performing oral sex, 'salmon' and other fish are often used to indicate a vagina.
Not trying to smoke your salmon, but I completely agree with you.
I just think that's a greatidea, else i would have disagreed and called you an idiot.
"i'm not trying" is an excuse for people who lost in 1v1s.
It's basically an excuse to get away from the fact that you're actually bad at the game.
You might find this is Roblox fighting games, or other games as well.