In heraldry it means standing erect; in life it means running wild
[DOC] [TLE] Armorial Gold Heraldry Dictionary - Armorial Gold Heraldry Services [PAR] A glass for measuring the hours, by the running of sand from one part of the 
vessel ... Wild-man, Green-man, Woodman, and Saracen, are all depicted the 
same, and ... A term applied to the Griffin when standing erect upon its rear hind 
leg, with the ...