The initial idioms of the letter M

mess face up	mess of
mess of (something)	mess of pottage
mess over	mess someone’s face up
mess someone over	mess someone up
mess up	mess with
mess with someone/something	mess with the bull and you get the horns
message	messed up
messenger	met
meet head-on	meet the eye
metal	metamorphose into
mete out	meter is running, the
meth	meth monster
meth head	method in madness
method in one's madness	method to one's madness
method	Methuselah