fig leaf

Short definition from Wiktionary

Noun

1. 1
   A leaf of the fig plant.
2. 2
   A representation of leaf of a fig plant used to cover the genitals of a nude figure in a work of art (alluding to Genesis iii 7, in which Adam and Eve use fig leaves to hide their nakedness).
3. 3
   Anything used to conceal something undesirable or that one does not want to be discovered.
4. 4
   Alternative spelling of fig leaf.