Accused of hacking

I was fighting someone but they lagged. For the few seconds they were still I killed them and they thought it was an instant kill. They started spamming the chat thet I’m a hacker. How do I respond without making it look like I’m poorly defending myself.

Thank you.

Say lol lag or nothing. Getting mad just makes it funny and trying to explain just makes it look fishy. Hackusations are probably more common than actual hackers and most players know this. I have only seen one legit hacker aimbotting (two impossible single shot head shots from insane range while I was moving along with complaints from the rest of the server), but have been accused of hacking on numerous occasions. People hate to lose and will constantly whine.

how about ignoring whiners? best solution