tripping adjective. 
['trɪpɪŋ] M16.[from TRIP verb + -ING2.]1.  Moving with quick light steps, nimble. 
M16.2.  Stumbling, erring, sinning. 
M16.3.  Heraldry. Of a buck, stag, etc.: = 
PASSANT 2. 
M16.4.  Mechanics. Of a device: that trips something. 
L19.tripping-circuit, 
tripping-lever, etc.
 ■   trippingly adverb LME. ■   trippingness noun E19.  [TahlilGaran] English Dictionary ▲