Verb (5-dan, る, intransitive)
1.  to cramp up;  to tighten;  to stiffen
2.  to be insistent;  to persist (in one's opinion);  to stick to one's guns
3.  to act tough;  to bluff;  to be defiant;  to be unruly
Verb (5-dan, る, transitive)
4.  to prop up (e.g. with a post);  to support
5.  to push out (one's legs or arms);  to stretch (e.g. an arm against the wall);  to press
6.  to thrust (one's opponent)