l'void - Making it look like you're trying not to laugh, even though

Making it look like you're trying not to laugh, even though you're dying inside.

I l'voided my brother when he said 'I failed the test, but I still passed the class.'

He l'voided me during the lunch break because I said 'I think the sky is green.'

She l'voided her friend when she said 'I’m not shy, I’m just dramatic.'