It came upon one suddenly, unexpectedly, without his knowledge. (S, K, TA.)
2.
انبعق المُزْنُ (tropical:) [The clouds, or white clouds, or clouds containing water,] clave asunder, with, or by reason of, rain, or violent rain; synonym اِنْبَعَجَبِالمَطَرِ; (S, K, TA;) or opened vehemently with rain; (Z, TA;) and ↓تبعّق signifies the same. (S.)
3.
انبعق فُلَانٌ بِالجُودِ وَ الكَرَمِ (tropical:) [Such a one was profuse in bounty and generosity]. (TA.)
4.
انبعق فِى الكَلَامِ (S, K) (assumed tropical:) He was profuse in speech; (K, * TA;) as also ↓تبعّق (K) and ↓ابتعق. (Sgh, K.)