Russian-English translations for лажать

• blunder
  to blunder in preparing a medical prescription
• bungle
• fuck up
  You really fucked up this time
  I fucked up question 3 of the exam
  I fucked up my knee while running the marathon
• goof up
  If I go near a skateboard, Im sure Im just going to goof up and fall off.
  I tried to fix it, but I think I just goofed it up some more.
• mess up
  The afternoon breeze messed up my hair.
  The change messed something up, and its not working anymore.
  Well, I messed up my solo, but otherwise it was a good concert.