'Crossruff' definitions:

Definition of 'crossruff'

(from WordNet)
verb
Trump alternately in two hands

Definition of 'Crossruff'

From: GCIDE
  • Crossruff \Cross"ruff`\ (-r?f`), n. (Whist) The play in bridge or whist where partners trump each a different suit, and lead to each other for that purpose; -- called also seesaw. [1913 Webster]