she has (Gain)ed weight but is not (say)ing it which means, she is denying the fact.
to "GAIN"(say profit) you have to "SAY" something(challenge something)
Those opposed to dishonest GAIN SAY it is unethical.
u have something to gain by saying lies.
Gai(gay's) say (open speech) is disputed/challenged/not accepted in our society.
SAY a girl puts up or GAINS aa lot of weight.She will be DENIED to follow her usual heavy diet
if a GAY says some thing then it is contradicted by others.
when somebody (gain)s weight they [deny] (say)ing it obviously.
gainsay = a say need gain is always weak commenti.e contradictory.