Fourth sign of the Zodiac. From June 22 to July 22.
The Cancer person is: fearless, tenacious, retentive, resourceful, self-contained, very defensive, family- and home-oriented, intuitive, honest, generous, humorous, traditional, perceptive, emotional, loving, shrewd, proud, sensitive, protective, nurturing, cautious, helpful, purposeful, wise, easily flattered, hard-working, romantic, imaginative, security-oriented, very sexual, nurturing, warm, sympathetic, patriotic, sentimental, caring, and extremely protective of loved ones, and very innocent.

The Cancerian is prone to being changeable or moody, hyper-sensitivite, touchy, patriotic, clingy and unable to let go, tenacious, devious, dominating, secretive, coldness, madness, overcritical or harshness, blunt, ruthless, suspicious, jealous, quick-tempered, violent, volatile, controlling, depressive, deceitful, lacking in stability, manipulative, aloof, dogmatic, eccentric, boastful, reckless, over-dramatic and somewhat arrogant.
Cancers can have problems coming out of their shell. THey're often times reffered to as the "snail" human.

A serious, life-threatening disease.

Very commonly misused by a bunch of adults on the internet to describe anything that's popular.

The 4th astrological sign of the zodiac. The sun is in this sign from June 21st to July 22nd. Cancer's element is Water and quality is Cardinal. The moon is it's ruler, governing the feeling nature of an individual such as emotional makeup, and unconscious habits. They have maternal instincts and are very receptive. The power of the moon is usually hidden until an eclipse where we are reminded that it is no less influential than the sun. It can be hard for Cancer to let go of the past, they are moody people but are loving and imaginative. They are considered to be compatible with signs of the same element (Scorpio, Pisces, and Cancer itself). Their main body part is the breast and the polar opposite of Cancer is Capricorn.

Online Social Meanings, mostly used in forums:
Group of people who encourages more people (hence cancer's spreading nature) go join a certain forum with then corrupts the traditions and influenced (usually in a faggotry sense) the forum.

In other words, Newfags in numbers who couldn't shut up.

- Any of various malignant neoplasms characterized by the proliferation of anaplastic cells that tend to invade surrounding tissue and metastasize to new body sites.

- The pathological condition characterized by such growths.
A pernicious, spreading evil.

- A term often used as an insult when referring to someone who is a pathelogical source of trouble and discord within a group. Sadly, this word is usually used as an insult when the moron looking to talk trash about another person, and just can't come up with anything more original. See skippy mcnipplehead, hag, clannie, chickenshit, and the queen.

cancer is a disease where you loose hair and you may die but some people do live the most common is lung cancer which is normaly caused due to smoking