Cis isomer Memes

Finally, a "your mom" joke with some scientific backbone! This meme shows two alkene molecules with their substituent priorities labeled. On the right is the trans isomer (priorities on opposite sides) while the left shows the cis configuration (priorities on same side). So your mom is... trans ! Get it? It's organic chemistry humor that transforms juvenile insults into stereochemistry puns. Next time someone drops a "your mom" line, counter with "Actually, according to the E-Z naming system, she's in the E configuration."