To act in a tricky, inconstant way, saying one thing and doing another.
To be recklessly inaccurate, inappropriate, or otherwise ignoring guidelines and conventions.
To ignore proper behavior or social conventions, especially when it suits one's purpose.
To strive, or to make efforts, with a twisting, or with contortions of the body.
To strive, to labour in difficulty, to fight (for or against), to contend.
A contortion of the body in an attempt to escape or to perform a difficult task.
Strife, contention, great effort.