A person who people think is dumb just because they have muscles. However the weaker people in society have no idea what kind of training and knowledge it takes to become a master physical specimen. Many weaker people say that meatheads are obbsessed with their muscles. Obsession is a word that the lazy use to describe the dedicated.
Meathead= a highly dedicated and smart person who looks for a healthier lifestyle than the fastfood eating video gaming losers that wear their sisters pants.

a guy(most of the time) who is obsessed with foot ball and weight lifting and wrestling ect.. 24/7

Rugby Players...of the chav variety. Usually come in all shapes and sizes, and each others assholes. Muscle grows where no man can grow muscle, replacing brain tissue with muscle tissue. Usually taking on the accent similar to a plymouthian or plymptonite, with phrases such as "'ere fock" and "ya cont" which strangely enough translates as "Here Fuck" and "You Cunt." These apes....sorry rugby players are consistently fucking around, and trying to sleaze younger girls (usually aged between 19 and 12) Not only are these meatheads complete tossers, they also have minions (also known as little bitches) who think that they are powerful due to there large ameoba-likr rugby players

A person who achieves greatness through self-motivation, dedication and knowledge of the bodybuilding art. They are looked down upon by the weaker willed, excuse ridden, unmotivated scum of the Earth. A meathead strives to prove the power of the human body and potential dedication of the human mind. They do not demand respect; they earn it.

A Meat Head is a really large land whale. There is only one of this species currently known to scientists. The Meat Head has a ham on the top of its neck, in place of a head. The Meat Head can be spotted strutting up the sidewalk, with its one and only homeboy. Since the Meat Head is insulated with so much blubber, it only wears a thin sweater even in the coldest of winter days, to stay cool and prevent the ham from cooking. When the Meat Head chooses a sweater it may live inside it for 6 months to a year, or until it rots of and needs replacing. The Meat Head lives a lonely life. It spends its time alone, or with its only friend. The Meat Head will never mate. Due to its fat to muscle ratio, the Meat Head does not have the strength required to perform the necessary movements. Also, being the only one of its species, the Meat Head would only be able to produce sterile offspring, similar to when a horse mates with a donkey to produce a mule. NASA is currently studying the phenomenon of Meat Head Orbit. Meat Head Orbit or MHO is caused by the Meat Heads fat ass, it is actually so large that it has its own orbit. The Meat Head uses MHO to its benefit, capturing anything that begins orbiting it, and eating it, making his orbit stronger, and able to pull in larger objects for consumption. NASA is concerned that at the Meat Heads rate of growth, it may implode into a black hole, sucking the Earth in.

Meathead is the common name for a species that is believed to be the evolutionary deadend from cross-breeding between chimpanzees and neanderthals. Meatheads may be identified by their physical traits which include abnormally large upper torso and especially large biceps (or “guns”) and low mental capacity. They may be observed in their natural environment "the gym" and typically congregate around squat racks and dumbells. They are often observed carrying gallon jugs of water and protein bars and/or shakes. It is highly recommended to speak slowly, using the most basic vocabulary when conversing with a Meathead.

Canadian military slang for a military police officer. The term comes from their identifying red berets.