to strike; to hit; to beat; to knock; to pound; to bang; to slap; to spank; to tap; to pat; to clap (one's hands); to play (the drums)

to attack; to bash; to criticize; to censure; to flame (on the Internet)

to sound out (someone's views)

to pound (meat or fish); to chop into small pieces

to beat down the price

As ...口を叩く

to talk (big, bad, idly, etc.)

Computing

to call; to invoke (e.g. a function)

to throw violently against; to slam against; to strike; to slap something onto; to dash (e.g. to the floor)

to thrust at someone (e.g. a letter)

to drive into (e.g. a nail into a board); to hit into (e.g. a home run into the stands)

to throw into (e.g. jail)

to drum into (someone) (an idea, skill, etc.); to hammer into; to drill into

to blink (one's eyes) repeatedly

to clap

to smash up; to defeat crushingly

to dust; to remove dust

to slap; to hit (with the palm)

to use up money

to knock down; to knock off

to knock down; to beat up (till unable to stand)

to crack jokes