UFC star Sean O'Malley just brought the meaning of self-love to a whole 'notha level ... by getting a tattoo of himself on his neck!!!
The heavily tatted bantamweight fighter decided to add to his ink collection this week ... hitting up tattoo shop The California Dream in North Hollywood.
Romeo Lacoste -- owner of the shop -- posted photos of himself workin' on the 26-year-old on Instagram ... immortalizing his jump shot celebration after knocking out Thomas Almeida in March at UFC 260.
The piece is as detailed as it gets -- it even includes O'Malley's body art ... which means it's tats on tats!!!
"VICTORY Tattoo!! for @sugaseanmma 💪🏻💪🏻 ", Lacoste said on IG, "Had the pleasure of knocking this piece out (no pun intended) 😂."
"Thanks for coming in and the good time. More to come soon!"
We believe it -- just 2 weeks ago, O'Malley let rapper 6ix9ine tat his '69' logo on his right shoulder -- with the help from Tatu Panda.
Wonder what's next!!