تشحّى
1.
, according to Aboo-Sa'eed, primarily signifies He took a wide, or an ample, range in anything. (TA. [See also 1, last explanation.])
2.
[Hence,] تشحّى عَلَيهِ
He spread out, or stretched out, his tongue, [or he gave wide range to his tongue,] respecting him [or against him]. (K.)