One was last Monday.

2 seconds sound clip from the Clueless (1995) movie soundboard.

You can hear this line at 00:14:09.483 in the Blu-ray version of the movie.

Quote context

[...]

- I'd like to thank my parents for never giving me a ride to school. The LA City bus drivers for taking a chance on an unknown kid.

- And last, but not least, the wonderful crew at McDonald's, for spending hours making those Egg McMuffins without which I might never be tardy.

- If Mr. Birkenstock has no political messages to include in his speech, I'll go on.

- Cher Horowitz, two tardies.

- I object. Do you recall the dates of these alleged tardies?

- One was last Monday.

- I was surfing the crimson wave. I had to haul ass to the ladies.

- I assume you're referring to women's troubles and so I'll let that one slide.

- Thank you, Mr. Hall.

- Miss Geist was right about you.

- What do you mean?

- Well, she said that you were the only one in the school with any intelligence.

[...]