Meanings

mother of all bombs

line drive shot

bullet hell (genre of shoot 'em ups)

singing while playing (the guitar, piano, etc.)

fuel-air explosive

fuel-air explosive

thermobaric bomb

snapping the fingers (esp. by striking the side of the middle finger with the thumb; to indicate consent, joy, a warning, etc.)

inelastic scattering

elastic scattering

screamer bomb

intermediate-range ballistic missile

intermediate-range ballistic missile

piano piece for four hands

cylinder (of a revolver)

cylinder (of a revolver)

lead bullet

bullet climb

trying out (a piano, organ, etc.)

ancient Chinese board game similar to go