Findings:

• affix hopping
• against the humming of diesel engines
• The Humming Top
• Still and humming and glaringly dull
• in the dark humming hours of the night
• Humming
• distro hopping
• hopping (user)
• train hopping
• Frequency hopping
• bus hopping
• Summit Hopping
• The Hopping Whirling Ball of Death
• Rimrod's Fencing Autobiography : Thirteen
• Chinese Hopping Vampire
• channel hopping
• Hopping
• bar hopping

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