斯里克 phonetically transliterates English 'Slick':
斯 catches the initial 's',
里 fills the 'li' Mandarin can't render as 'sli-' directly, and
克 closes with '-ck'. Mandarin has no native 'sl-' cluster, so transliterators always insert a vowel. This name appears as a recurring nickname or surname in dubbed cartoons, comics, and games.