A good and popular example is Omegle.
This thread has been created so you guys can post funny/weird conversations on those sites. I'll see if I post one later.
So, come on, share so we all have a good laugh.

You're now watching two strangers discuss your question! Question to discuss: Do you like Minecraft? Why / Why not? Stranger 1: no Stranger 2: Yeah Stranger 1: its stupid Stranger 2: Its full of fags Stranger 2: TAnd fags who make vids about it Stranger 2: and* Stranger 2: So its ideally the best place to fuck with people Stranger 1: so u like it cause ur a fag? Stranger 2: :D Stranger 2: YEAAAAAAAAAAAAAAAAAAAAAAH Stranger 1: i see Stranger 2: HOW DIDZ U KNOWS??? Stranger 1: Stranger, I... Stranger 2: LOLOLCAPSLOCKFAGTALKLOL Stranger 2: YES???? Stranger 1: i dont know Stranger 2: Exactly Stranger 1: Son, I am dissapoint Stranger 2: FUCK Stranger 2: >:0 Stranger 2 has disconnected
You're now chatting with a random stranger. Say hi! Question to discuss: my poo..... discusss Your conversational partner has disconnected.
my mom... discuss Stranger 2: Your mom. Stranger 1: Hmm. Stranger 1: Yo mother so fat Stranger 2: Yes yes yes, we know. Stranger 1: That when she walked passed the tv Stranger 2: You missed lost. Stranger 2: Ok.
will you have cyber sex?I'm so horny.. Stranger: my name is edward, i sparkle and im faaaaaabulous You: what Stranger: my name is edward, i sparkle and im faaaaaabulous You: okay... ehm hi edward Stranger: my name is edward, i sparkle and im faaaaaabulous :D You: okay.... thats enough Stranger: my name is edward, i sparkle and im faaaaaabulous no You: hey stop Stranger: my name is edward, i sparkle and im faaaaaabulous SECKS You: wth is wrong with you Stranger: my name is edward, i sparkle and im faaaaaabulous boobs You: yeah i know!!! stop saying that Stranger: my name is edward, i sparkle and im faaaaaabulous baby You: omg... Stranger: my name is edward, i sparkle and im faaaaaabulous eggz You: OKAY OKAY... MAN Stranger: my name is edward, i sparkle and im faaaaaabulous GIRL You: .... cheesus Stranger: ok i get it You: stop dude You: ok Stranger: lmfao You: roflcopta Stranger: coflropter Stranger: XD You: lool You: do you like pancakes? Stranger: i had this morning :D You: wooow! Stranger: im listening to metallica! You: you are so famous! You: lol You: im to techno Stranger: ahhh ok Stranger: ladytron? You: nope Stranger: shiny toy guns You: ahh lets answer the question okayß Stranger: i dont wanna You: my answer: no go out and search someone You: lol ok You: .... loool Stranger: porn Stranger: :P You: yeah porn You: ... porn Stranger: pr0n You: i wanna a porn You: porn korn Stranger: youtube.com/user/themarkofj You: korn porn torn Stranger: ;) You: okay i will abo you You: .... lol You: do you know mc? Stranger: who? Stranger: fuck tha police You: minecraft Stranger: minecraft :D You: minecraft is good :D You: do you know unrealsoftware ? Stranger: ummm nope Stranger: unreal tournament? Stranger: lol You: no You: xDDD Stranger: :D You: okay i will go out to abo you see ya