What is a “weak freak”? Sounds like someone you wouldn’t want to hang with.

Actually, it’s a useful bridge bid.

Here’s how it works. Your partner has bid one of a major. You have five-card support in the suit, 0-8 high-card points, and a singleton or void in a side suit. Bid game!

Let’s say partner opens 1♠️ and your right-hand opponent passes. You hold these cards: ♠️ Q 10 9 4 3 ♥️ 5 ♦️ Q 8 6 5 2 ♣️ 9 2. Don’t waste time. Bid 4♠️.

You can see why that’s called a weak-freak raise.

There are two advantages to using this bid. First, you might make the contract. Seriously. Second, even if you go down, your opponents might have a game-going fit you pre-empt them out of bidding.

You can also make this bid after partner overcalls 1♠️ or 1♥️.

On July 1, two of my students executed a perfect weak-freak sequence at the Edgartown Bridge Club. West was dealing, with North-South vulnerable:
                    

                     NORTH (Mary Wagner)
                    ♠️ A Q 9 7 4
                    ♥️ Q 8
                    ♦️ 10
                    ♣️ A K Q 10 9
    WEST                                                  EAST
    ♠️ 6 3                                                 ♠️ 5
    ♥️ A J 7 2                                           ♥️ 9 6 5 4 3
    ♦️ A Q 9 7 6                                      ♦️ K J 8 4 3 2
    ♣️ J 7                                                ♣️ 5

                    SOUTH (Diane Bodman)
                    ♠️ K J 10 8 2
                    ♥️ K 10
                    ♦️ 5
                    ♣️ 8 6 4 3 2

The bidding proceeded as follows:

West            North            East            South        
1♦️                 1♠️            3♦️            4♠️

    All Pass

    Opening lead: ♣️5

    As you can see, 4♠️ makes five. 

    Sitting East, I was delighted to see students who have learned something from me whup me in competition. Really.