Cheerful, meadow, or hazel eye
Eislee is a modern American invention, likely a phonetic variant of Isley or a combination of the German word 'Eis' (ice) and the suffix 'lee' (meadow). It is often associated with the hazel-eyed meaning of the name Ainsley or the bright, cheerful vibe of similar-sounding names.
Less common today
Eislee isn't in the latest US Top 1000. It last peaked at #9,119 in 2018.
US births per 5-year period, 1990βpresent (SSA data).
Indie rock band from Texas (namesake for the sound)