lowkilling

In gaming, lowkilling is when a player kills other player that has low health points, mainly because of a previous fight or doing revenge on that player.
This is considered one of the most coward or bad ways of killing another player, and is commonly done by noobs, people who wait the ending of fights to kill the remaining player(s), or by players who get defeated at a fight or 1v1 and seek for revenge.

Player1 killed Player 2 with sword.

Player1: You left me with 9 hp, I don't know how I survived this haha.

Player3 sees the aftermath of fight and realizes Player1 is low and attacks him.

Player3 killed Player1 with knife.

Player3: Damn, that was too ez bro.

Player1: Shut up man, I had low hp that was lowkilling.

Player2: Yeah don't be a dick and accept you did that man.