noun
the other way; another direction
Almost always used in the set phrase そっぽを向く, meaning to look away or turn one's face aside, often implying deliberate avoidance or disinterest.
See also: そっぽを向く
彼は気まずそうにそっぽを向いた。
He looked away awkwardly.
話しかけたのに、彼女はそっぽ
Even though I spoke to her, she turned away and ignored me.
The idiomatic phrase using そっぽ; the standalone noun そっぽ is rarely used outside this expression.
The origin is uncertain. It may be related to 外 (そと, 'outside') or a sound-symbolic element, but the exact derivation is unclear.