Ahab's beer is a glass of beer in the Port Sarim pub, The Rusty Anchor. It cannot be obtained, even through telegrabbing. When the "take" option is selected, Ahab yells at the player, "Oi! Leave me beer alone!". When a telegrab is attempted, Ahab says, "Oi! Don't be casting spells on me beer!".
Ahab's beer was originally named "beer" but was later changed to "Ahab's beer".