[hijack] To start an off-topic discussion; "hijack a thread" on a […]

[hill] See: [GRASS IS ALWAYS GREENER ON THE OTHER SIDE OF […]

[hilt] See: [TO THE HILT] or [UP TO THE HILT].

These can never be true friends: hope, dice, a prostitute, a […]

[hinge on] or [hinge upon] {v.} To depend on as decisive: […]

[hire out] {v.}, {informal} 1. To accept a job; take employment. […]

[hired man] {n. phr.} A man employed to do jobs every […]

[history] See: [GO DOWN IN HISTORY] or [GO DOWN IN THE […]

[hit] See: [HARD-HITTING], [MAKE A HIT], [SMASH HIT].

[hit and miss] See: [HIT OR MISS].