Gronk

British Rail Class 08 shunter[31]
Found on http://en.wikipedia.org/wiki/Glossary_of_United_Kingdom_railway_terms

GrOnk

grOnk, or GRoNK, was a seminal Canadian literary magazine begun in 1967 by bpNichol, David Alyward, Rah Smith, and David UU (David W. Harris). An offshoot Ganglia Press (founded in Toronto, Ontario, in 1965 by bpNichol and David Aylward), grOnk was a monthly publication focusing on concrete poetry and `the language revolution` underway in Canada.....
Found on http://en.wikipedia.org/wiki/GrOnk

Gronk

Gronk is computer slang for to clear a jammed machine.
Found on http://www.probertencyclopaedia.com/browse/ZG.HTM

Gronk

nickname for class 08 shunting locomotives
Found on http://www.scot-rail.co.uk/page/Glossary
No exact match found