Title text: Oh, yeah, we get tons of them at these casual sex bars.
The man in the comic seems to be using a common cheesy pick up line (So, how do you like your eggs in the morning? -- implying that he will be the one cooking them, because they will still be together in the morning, because they spent the night having sex). The standard response to this pick up line for a woman seeking to brush off the potential partner (as one would expect a woman in a bar being propositioned by a stranger to do most of the time) is "unfertilized", switching the meaning of "eggs" from chicken eggs to female gametes. In fact, the man is not trying to solicit sex from the woman, but instead is trying to set her up for that punchline as he is in the habit of setting up jokes. The woman's desire for actual casual sex subverts his plan for comedy.
The title text implies that this is a bar where most people are looking for casual sex, and jokers are a common nuisance, in contrast with bars were most women are not looking for a hookup and men who troll for casual sex are a common nuisance.
Alternatively, the title-text is a response to the comment about a Priest and a Rabbi. Jokes about Priests, Rabbis are fairly common, and the man appears to want to set up such a joke. However, the title-text uses sarcasm to point out that such religious leaders would be unlikely to frequent a bar where people go for casual sex.
- [Megan sits at a bar, Cueball approaches.]
- Cueball: So, how do you like your eggs in the morning?
- Megan: Ooh, sunny side up.
- Cueball: Oh. Huh.
- Megan: Is that a problem?
- Cueball: Well, it's just that I was trying to set you up for the "unfertilised" line.
- Megan: Ah. Bad timing; I'm actually looking for casual sex. ...interested?
- Cueball: I'd love to, but I've got like 20 more jokes to set up tonight. Hey, have you seen a priest and a rabbi?