1. [19C] to cough.
2. [early 19C+] to tout a shop or attraction; to work as a costermonger’s assistant; thus barking n. and occas. adj.
3. [late 19C] (UK Und.) to inform.
4. [late 19C–1940s] to fire a gun [ext. of SE bark, to make a sudden loud noise, esp. of gunfire].
5. [1950s+] to hurt.
6. [1960s] (US) to boast, to brag.
7. [1990s+] (also bark out, (orig. Aus./N.Z.) to vomit.
8. [1990s+] (US campus) to lie.
[2010s] (US black) to attack verbally; to reprimand.
[1900s; 1960s] a generally dismissive excl.