Spongebob's Nickname That Grumpy Cat Calls Him. She Calls Him ''Blockhead'' Because She Thinks His Real Name Is Stupid & She Also Thinks His Head Is A Block. Pom Calls Him ''The Wi-Fi Wizard''.
Spongebob Squarepants: Hi, Grumpy Cat!
Grumpy Cat: . Pulls Spongebob's Pants . You Blockhead!
Block head meaning that the shape is shaped like a block.
Sam's Hat is shaped like a blockhead.