i would suggest replacing the word "killing" with something a bit funnier and less likely to be taken out of context. eg "boffing", "thwacking", "clowning", in

i would suggest replacing the word "killing" with something a bit funnier and less likely to be taken out of context. eg "boffing", "thwacking", "clowning", in the best case you come up with something trade-markable that suggests what the word means from the sound alone.