it depends on how motivated the LEOs and DA's are around your area.
it's always best to keep things slangish. i used to refer to x as 'tickets' back in my heavy drug using days. and i used to refer to half oz of weed as 'the game'. "you got the game?" is pretty innocuous.....
now i send them very vague texts, "hey, you home?" is a classic and they know what I mean, but i've had the same dealers for years. they also have certain code words for when they think the cops are a little too close, which keeps both of us free.