"A collection of insults 46" joke

Lights not burning too bright.
Like a barometer - vacuum at the top.
Like a loose-leaf folder in winter.
Like a one-armed man climbing a rope.
Likes dunking for french fries.
Little red choo-choo’s gone chugging ’round the bend / jumped the track.
Lives in La-la-land.
Lives in the same world, but a different universe.
Living proof that nature does not abhor a vacuum.
Long on dry wall, short on studs.
Looking for a nickel in the corner of a circular room.
Looks for the “Any” key.
Loose chip on the microprocessor board.
Loose wire to his headset/ringer.
Low on thinking gas.