Phonetic transliteration of an English/German -man surname (Spielman, Spearman, Spillman). Each character is sound-only:
斯 (sī, 's-'),
皮 (pí, '-pi-'),
尔 (ěr, '-r-'),
门 (mén, '-man'). The character
门 is the standard rendering of the '-man' suffix in Western names.