It can mean many different things. See the link in related links for a decent list.
TKO means total knock out.
TKO means "to keep open". It is the same as KVO, "keep vein open".
The medical abbreviation TKO means To Keep Open (relating to IV fluid administration)
taking off
what does Nx mean in texting or emails
It mean love ya when texting
Like
yes it does!
WYD is the abbreviation for 'What you doing' when texting.
' Picture texting ' means texting pictures of photos you took with your phone .
TKO Software was created in 2002.
TKO-HQ was created in 2006.