WordWeb Online

1. An unintentional but embarrassing blunder
   "he arranged his robes to avoid a trip-up later"
   - trip, stumble, misstep

1. Detect a blunder or misstep
   "The reporter tripped up the senator"
   - catch
    
2. Cause to stumble
   - trip
    
3. Make an error
   - stumble, slip up

Derived forms: tripped up, trips up, tripping up, trip-ups

Type of: bloomer, blooper [N. Amer], blue [Austral, NZ], blunder, boner, boo-boo, botch, bungle, discover, err, find out, flub [N. Amer], foul-up, get a line, get wind, get word, hear, learn, mistake, pick up, pratfall, see, slip