Kick (one) when (one) is down informal verb phrase
To criticize, exploit, insult someone when they are in a weak position.
James has just got fired, so you shouldn't kick him when he's down.
I don't like my boss. He always kick his competitors when they're down.
Instead of helping Jimmy find his wallet, Jack kicked Jimmy when he's down.
Someone who ruins others' fun and enjoyment
The verb "kick" should be conjugated according to its tense.
in any way at all
I will not accept it in any way, shape or form.