boo-boo(n = noun.act) bloomer, blooper, blunder, boner, botch, bungle, flub, foul-up, fuckup, pratfall - an embarrassing mistake;
is a kind of error, fault, mistake
has particulars: bobble, snafu, spectacle, bull, fumble, muff, fluff, faux pas, gaffe, gaucherie, slip, solecism, howler, clanger, misstep, stumble, trip, trip-up

1.  an embarrassing mistake. [WordNet 1.5]

2.  a minor injury, such as an abrasion on the skin; -- child's talk. [PJC]