The Danza: Mangoni's real name is Luca Mangoni. Also, a couple of early members used their real, funny-sounding surnames (Cortellino and Zuffellato) as nicknames.
Ear Worm: "La terra dei cachi" ("Persimmon Land") placed second at the 1996 Sanremo Music Festival and was immediately picked up by the whole country. No wonder, since the main section ("Italia sì, Italia no" "Italy yes, Italy no") is insanely catchy .
Their 1993 song "Sunset Boulevard", which mocks football players at the end of their careers, urging them to stop playing (with lyrics like "a fat and slow guy, who came to sunset boulevard") is sometimes used by some fans in reference to EelST themselves, feeling that their output from the 2000s onwards does not hold a candle to their earlier material (to be fair, their first albums are definitely a Tough Act to Follow). The band somewhat acknowledged this, saying that they will retire after 2017. (And then pushed the date forward to 2018, another move that alienated some fans.)
This is somewhat both Harsher and Hilarious. In their 2003 album Cicciput there was a song titled "Litfiba tornate insieme" ("Litfiba, Come Back Together") which jokingly asked the two founding members of Litfiba (a famous Italian rock band) to make peace and give an end to the band's hiatus. The funny thing is, in 2009 the two guys actually went through it and brought Litfiba back, and they show no sign of disbanding to this day. However, in 2017 EeLST announced their retirement seemingly for real... Several fans joked that Litfiba should write "EeLST tornate insieme".
Keep Circulating the Tapes: during their 1998 USA tour they recorded four short episodes of a miniseries called "Vite bruciacchiate", about their fictional discovery of the lost tapes of a 1940s band who "invented" many musical genres that were born only decades later. This miniseries was broadcasted only once on the Italian state television, two years later, late at night and without any advertising. Since it was never reprinted in any format, it can only be found on old VHS tapes or on some P2P servers.
Sophomore Slump: absolutely inverted. "Italyan" is cited as EElST's best effort to date and is often put in lists of the best Italian albums ever by some critics ("Los Sri Lanka" is not counted as 2nd album for the reasons stated in "Stylistic Suck").