Hair of the Dog by Nazareth comes to mind.There have been some great songs with really repetitive lyrics. Still, sometimes I wonder about how to define repetitiveness.
Is it repeating the same lyric? Then songs like "Birthday Cake" by Rihanna would qualify. She repeats the word "cake" some 106 times during that song.
OTOH, is it just having very few lyrics? "Get Up and Boogie" and "Fly, Robin, Fly" by Silver Convention (Yes, I'm that old.) managed to hit #2 and #1, respectively, on the Billboard charts in the U.S. Both songs have lyrics comprised of just 6 words, repeated over and over. George Harrison's "I Got My Heart Set On You" only had 7 words in the song, repeated over and over.
Imagine writing those songs and getting the same songwriting credit and monetary rate of return for your work as, say, writing "American Pie." I imagine that on some days Don McLean must wonder if it was worth the effort.