break neck

break one's neck (to do something)

and break one's back (to do something)

Fig. to work very hard to accomplish something. I broke my neck to get here on time. There is no point in breaking your back. Take your time.

To make the utmost possible effort.

Name	Pronounced	Usage
SÉVÈRe	-	French
Mohammed	[məu'hæmed]
Maya (3)	-	Hebrew
Laetitia	-	Late Roman, French
KriŠTof	-	Slovene, Slovak
TjaŠA	-	Slovene