Boring
Alt: Most of them tend to peter eventually, on account of being tired and/or unfunny.
But the one that mildly irritates me is when people pretend to acknowledge that it's a dead meme by typing zzzzzzzzzzz in place of the second half.
( tangledupinblue hairy badge with moving eyes, Tue 12 Aug 2014, 13:23, 6 replies, latest was 11 years ago)

yurtpriczzzzzzz

(localboy purveyor of pisspoor puns, Tue 12 Aug 2014, 13:24, Reply)

yurt zzzzz ^

( Naked Ape call me Caitlyn, Tue 12 Aug 2014, 13:24, Reply)

MARRZZZZ

(localboy purveyor of pisspoor puns, Tue 12 Aug 2014, 13:26, Reply)

alrzzz

(dozers, do fuck off ur a nob m8, Tue 12 Aug 2014, 13:24, Reply)

I prefer the use of an old unfunny meme
FOLLOWED BY CAPITAL LETTERS TO EXPLAIN WHY IT'S FUNNY!!!
( MEATSNAKE Richard Hammond, Tue 12 Aug 2014, 13:24, Reply)

U R A flucken count AICMFZzzzzzz

( Bill Clay a.k.a. Claudio, Tue 12 Aug 2014, 13:28, Reply)

alright 'Bill Clay'

( tangledupinblue hairy badge with moving eyes, Tue 12 Aug 2014, 13:29, Reply)

^ knows his oats

( Bill Clay a.k.a. Claudio, Tue 12 Aug 2014, 13:32, Reply)