Jimpy

[…]though more than a hundred folk sitting in his company had beheld him dauting her with his arm round her jimpy waist, not five minutes before.

1999, Klaus-Armin Nave, Chapter 2: X-Linked Dysmyelination: Mouse Models of Pelizaeus-Merzbacher Disease, Brian Popko (editor), Mouse Models in the Study of Genetic Neurological Disorders, Kluwer Academic / Plenum Publishers, page 29, The jimpy phenotype is marked by a CNS-specific dysmyelination and has provided an authentic animal model for PMD (Sidman et al., 1964). Typically, 50% of the male progeny of jimpy carrier females are affected, whereas the heterozygous carrier female itself is unaffected.

When cerebellar tissues from normal and Jimpy are grown on the same slide in a common medium, no mutual effects can be observed: the Jimpy does not myelinate, and the normal does not stop myelination.

1985 [Hodder and Stoughton], Terence Strong, Conflict of Lions, 2014, Silver Fox Press, unnumbered page, Before they had come to a standstill, the protective cover had come off the powerful twin GPMG ‘jimpies’ mounted in the rear compartment by the laconic Australian, Corporal Kangers Webster.

Immediately to his right was our very latest addition to the hill, Frank, on one of the Jimpies. To his right, leaning against the wall with his sniper rifle, was Caz.