Defense against 1NT opening: suit overcall shows either 1) the suit above it, or 2) five-five distribution or better in other 2 suits
- 2diamonds, OR 5 - 5 in hearts and spades
- 2hearts, OR 5 - 5 in spades and clubs
- 2spades, OR 5 - 5 in clubs and diamonds
- 2clubs, OR 5 - 5 in diamonds and hearts
Overcaller will usually hold the long suit and not the five-five distribution.This defense is similar to TRASH overcalls, although I believe TRASH overcalls show more strength.