pally /ˈpali/noun 3adjective 1forms 5 noun3 •(US) An affectionate term of address.‘Sit here, pally.’ He pushed me down. — 1940 •(US, Australia) A slightly derogatory and insulting term of address.What do you think you are doing, pally? •(slang) A paladin. adjective1 •Like a pal; friendly.The O′Briens are the palliest of pals with the Prince of Wales and when HRH is in Biarritz he and Jay are inseparable. — 1929 formspallies · more pally · pallier · most pally · palliest