Fathom

[Luis Fok]

A measure of length, containing six feet; the space to
which a man can extend his arms; -- used chiefly in measuring cables,
cordage, and the depth of navigable water by soundings.

[Luis Fok]

a unit of mesuring distance that is 6 feet or about equal to the length of a grown mans outstreched arms.

to contemplate or think about with effort

[Raeanne Dimick]

Deep thought.
A cliché that means deep thought.
The action of people thinking underwater.

also:

Main Entry: 1fath·om
Pronunciation: fa-[th]

[Mark Zuckerberg]

noun - a unit of length equal to six feet (approximately 1.8 m), chiefly used in reference to the depth of water.
verb - (1) understand (a difficult problem or an enigmatic person) after much thought. (2) measure the depth of (water).

[Raeanne Dimick]

this is the coolest wordin the english language i use it in every day talking cuz im cool

[Couch Potatoe]

A Whack MC i.e. Cory Krall

[PussyCat]

1. A depth of 6 feet
2. To think very hard
3. Your Anus. The bcakround behind this meaning comes from when two people were dune boarding and one fell off and loanded on my bum and said that his anus had stretched 6 feet open. now the word fathom is used to describe all bums not just a six foot wide one like his.

[Rihanna]

used to substitute the word fuck

[Mary Mallozziberg]

Fathom in Yachting. The nautical measurement of depth equal to 6ft. Also used as a measurement for lengths of rope.

[Cami]

[Fathom] is a higher tier of the word ‘imagine’
[Shoutout] Avtive [Pharaoh]