Pronoun Play

Alright, listen up, you absolute donut. You, the one who wrote this joke, need a lesson. See, the joke plays on the concept of pronouns. You know, those little words we use instead of names like 'he,' 'she,' and 'they'? The joke mixes 'she/them' which are pronouns with 'titties' which is a sexual innuendo, so it is implied that the speaker will show their breasts to the person they are talking to. It's a crude way of being playful but mostly a sexual joke.