Principle of Explosion
by Jeff
Image text: You want me to pick up waffle cones? Oh, right, for the wine. One sec, let me just derive your son's credit card number and I'll be on my way.
The principle of explosion means that if you assume that something is both true and untrue at the same time, then you can prove any conclusion. Usually, someone would prove that something is true or false, but in the comic, the principle is used to derive a phone number and a credit card number. The joke in the comic is taking the mathematical logic to the next level to make a joke about the first character's mom.
The equation in the third frame is the typical notation for a principle of explosion equation. It means "P and Not P". P represents some statement such as "the sky is blue". So, the equation is: "The sky is blue and the sky is NOT blue." From that premise, you can prove anything. In the comic, you can even prove a phone number or credit card number.
Trimester
by Jeff
Image text: Also, it's not like anyone actually calls up the Nobel committee to double-check things.
In this comic, the main character dresses up in a lab coat and pretends to be an OBGYN for a the pregnant character in this comic.
The female pregnant character doesn't look too pregnant in this comic. How to draw a pregnant stick figure I wonder?
FIRST Design
by Jeff
Image text: Pool on the roof must've sprung a leak.
This comic is about a robot competition between two sides. The protagonist's side comes up with a robot that has a match on an extending arm to set off the sprinkler system to disable the opposing robot. Then the protagonists added an umbrella to their robot so that their robot could complete the competition without getting wet.
The image text is the protagonist's flimsy excuse for the reason there is water everywhere.
UPDATE: As Zero Cool and Alexandra said in the comments, the Image text is a reference to the movie, Hackers.
Stephen and Me
by Jeff
Image text: Hey, let go! We were all thinking it! Someone had to speak truth to power!
This comic is a parody of the movie/documentary by filmmaker Michael Moore called "Roger and Me" in which he detailed the problems that General Motors created in his hometown of Flint, Michigan by moving the manufacturing to Mexico. Roger is reference to General Motors CEO Roger Smith.
Stephen Odell is the CEO of Volvo, so the parody becomes "Stephen and Me".
The image text in this case is a continuation of the comic and what the filmmaker with the beret would say when he was being taken by security.
Silent Hammer
by Jeff
Image text: I bet he'll keep quiet for a couple weeks and then-- wait, did you nail a piece of scrap wood to my antique table a moment ago?
In this comic, we see the return of the Black Hat character, who this time is using his silent hammer invention for trouble. The skeptics society is a group based on the fact that they must apply reason to all situations and only supports claims that have compelling and complete evidence. Obviously, the Black Hat character knew this before puling this prank on the "Chair of the American Skeptics Society". There does not appear to be such a title in real life, but Michael Shermer is the Executive Director of the Skeptics Society.
Additionally, it is probably not a coincidence that the Black Hat character returns on comic number 666.