the-last-potion
Explanation
The Joke
Two fantasy adventurers are in a dungeon and discover there is only one growth potion left, but they both want it. One suggests they flip a coin to decide fairly. The bearded warrior refuses and declares, "I will be the bigger man" -- drawing his sword with a menacing expression against a dramatic red background.
The phrase "be the bigger man" normally means to take the high road, show maturity, and graciously yield in a conflict. But since the object they are fighting over is a growth potion (which literally makes you bigger), the warrior is using the phrase in its literal sense: he intends to take the potion by force so that he will physically become the bigger man. The threat of violence replaces the expected gesture of magnanimity.
The Humor
This is a clean pun-based joke that works by exploiting the double meaning of "be the bigger man." The setup leads the reader to expect a noble, selfless resolution -- one adventurer graciously letting the other have the potion. Instead, the warrior means it entirely literally and is about to murder his companion to claim the growth potion for himself. The dramatic art shift to a red background and the drawn sword sell the violent intent perfectly, making the subversion of the idiom land with maximum impact.
The video game and fantasy RPG setting adds to the humor, as players of games like Skyrim or Dungeons & Dragons will recognize the very relatable scenario of two party members fighting over a single valuable item in a dungeon.