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the week a woman experiences menstruation
Shannon was in a bad mood because it was shark week.
by Carina August 13, 2005
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Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
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2
The week during which a woman has her period. There will be blood, an uncomfortable sense of tension and a bad tempered, unpredictable beast.

Take heed during shark week. If you show signs of weakness or aggression, you will be attacked. If you get attacked, it will be all your fault, infinitely more traumatic for her and you'll never be allowed to forget it.
Man 1-"Why is your wife glaring at you from the window?"
Man 2-"Shark week. She's looking for an excuse to strike"

Man 1-"Pub?"
Man 2-"Hell yes."
by MagickDio January 08, 2011
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3
A week in the summer when discovery channel broadcasts all its shows in the shark theme. The best week to watch TV.
Bill: Hey dude you wanna watch TV?
Ted: Not really man.
Bill: But bro its Shark week!!!
Ted: Really! Most Excellent!
Rufus: I'll turn on the discovery channel.
by jonthom July 29, 2008
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4
The time of the month when you do not want to be swimming with Sharks
'Sorry I can't go swimming, it's Shark Week'
'Sorry I can't have sex, it's Shark Week'
'No I'm not a bitch, it's Shark Week'
by EvilRoberta March 10, 2015
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5
Shark week - A term used by female to male trans individuals, in order to reduce dysphoria triggered by using the word period, as this is gendered to be a female experience.
Poor guy, he's going through shark week...
by ssasmr October 01, 2018
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6
A week during the summer in which Discovery Channel airs its annual "Shark Week" and everyone on earth pretends to watch it and makes sure that all of their friends know by plastering stupid shit (e.g. Facebook status updates) all over the Internet. Usually no one really knows when Shark Week is until it actually happens because no one really cares about sharks any other week of the year. An overhyped show that everyone just claims they watch to look cool in front of their friends.
Facebook Status Update: "Shark weekkkkkk ♥ ♥ ♥ ♥"
"May the sharks be ever in your favor lol happy shark week 2012(:"
"Shark Week starts @9pm. Cant miss it!!"
"Oh, hey shark week!"
by IDontWatchSharkWeek August 12, 2012
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