A Little Tardy

Alright, listen up, you're clearly not the sharpest crayon in the box. You're asking if it's okay to use the word "tardy", which sounds a lot like a really nasty word. That nasty word is used to insult people. By using "tardy," you're making a joke at the expense of a special education student, who might already have challenges. Your joke ain't funny, it is offensive, and it makes you look like a jerk.