Aw, man, you slept with that ugly bitch? Shit's weak.

Bro since I got dirtpilled on Tuesday I have made sooo many worm friends and made them soo many little houses to get married in. Me? Lonely? No you’re the lonely one u lawn owning freak

eff you hoe, yo shits weak.

Examples of when it is appropriate to use this phrase:

Your friend posts a video of a rice rocket on Facebook, exclaiming how cool it is, but it isn't. You comment "Shit's weak."

You buy some espresso from Starbucks, only to find that it isn't as delicious as everyone says. You mumble, "Shit's weak."

You go to a party only to find that most of the attendees are not of the opposite sex (or not of the same sex, whatever floats your boat). "Shit's weak."

1. Damn, UF just lost to FSU again, fuck yeah!...shitsweak!

2. Gary: "My poem begins, 'a flock of seagulls cawed with the setting sun'..."
Allison: "Shitsweak, shitsweak! Shit is WEAK!"

Raiders just lost to the 49ers 89-6.
Shit's weak!

Gordon's girlfriend was crying cause we wouldn't give the bear back.
Shit's weak!

<In the proccess of an argument>

Rob: "...Not as bad as your face" <- (Bad comeback)
Stu: "Shit's weak!"

<In gaming>

(Rob gets sniped)
Stu: "AAAAAwwH! Shit's weak, man"