PANGA--a small boat. OED has 1927, but get an early Galapagos record and Panga will probably be mentioned. PING--William Safire mentions Ping this Sunday, eons behind ADS-L, Gareth Branwyn, Paul McFedries, et al. Safire also provides an 1887 cite for Street Arab, but this is woefully off and--. Aw, I am on vacation.