on (your) mind

in your thoughts, esp. because you are worried.

I'm sorry if I've been a bit irritable recently but I've got a lot on my mind.

• man on the Clapham omnibus
• man on the street
• man's best friend
• man's got to do what a man's got to do.
• man's man
• man-to-man
• many a
• many a someone
• many a something
• many moons ago
• map out
• map out something
• march to a different drummer
• mare's nest
• mark down
• mark down something
• marked man
• mark my words
• mark my words.
• mark time
• mark up
• mark up something
• marriage made in heaven
• marry beneath station
• marry beneath your station