No different from C U Next Tuesday or C U Next Time, a discrete and family-friendly way of calling someone a cunt.
Constance: C U Next Thursday at work.
Greg: Ok thanks.
An exciting way to call someone a cunt before the last day of the week.
Greg: Catch u next Thursday before we eat out.
Constance: Thanks.
Means to stop talking and cutting off stupid people who do dumb shit
Imma blow u off completely
it means that no u isn't a real comback so you can't say no u
u succ my penis.
"U SUCC MY PENIS"
"Yeah i know."