Top definition
The "hard gainer" of the fitness world since they have a hard time building muscle although it is not impossible.

They're naturally small built with long, lightly muscular limbs. The have a fast metabolism so the can stuff their faces without putting on weight.

To gain muscle they need to eat alot and do heavy weight training, its advised that they avoid cardiovascular activities since cardiovascular activities burn fat
Examples of ectomorphs are Lisa Kudrow, Kate Moss, Brad Pitt, Seth Green, Edward Norton and most NBA players
by Malloy91 September 07, 2008
Get the merch
Get the ectomorph neck gaiter and mug.
May 17 Word of the Day
Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.
I felt deep sonder thinking about the all the people who looked up this word along with me.
by rednos January 10, 2013
Get the mug
Get a sonder mug for your buddy Helena.
2
An individual having a lean, slightly muscular body build in which tissues derived from the embryonic ectoderm predominate.
"Steve Urkel is an ectomorph."
by Mesomorph January 13, 2004
Get the merch
Get the ectomorph neck gaiter and mug.
3
An individual who has a lean, muscular physique without having to workout his or her body.
Brad Pitt, Jake Gyllenhaal, and Quenton So are all examples of male ectomorphs.
by Teela January 16, 2007
Get the mug
Get a ectomorph mug for your daughter Beatrix.
4
Scrawny individual who has a difficult time putting on mass or gaining weight. Often used as a condescending term among weight-lifters to describe skinny, and thereby weaker, males. In the bodybuilding terminology, the antonym of ectomorph is endomorph - which is a fatter or heavier set individual who conversely has a difficult time losing weight.
Kevin: Look at that ectomorph over there Keith, he's about as skinny as a twig!
Keith: Yeah I would help him out, but I don't care. He can do whatever the F**K he wanna do!
by hodgetwins June 29, 2013
Get the mug
Get a ectomorph mug for your father James.
5
thin body long thin limbs feet hands short torsos long slender necks

doesnt really eat much
gorgeous sexy women with small shoulders and long sexy thin leggz

eats anything no weigth gain

like me!
by caitlyn January 01, 2005
Get the mug
Get a Ectomorphs mug for your mom Jovana.
6
An individual who has a lean, muscular physique without having to workout his or her body.
Quenton is an example of a male ectomorph.
by teela January 22, 2007
Get the merch
Get the ectomorph neck gaiter and mug.

Activity