Fellatio (also known as
fellation, and colloquially as
blowjob,
BJ,
giving head, or
sucking off) is an
oral sex act involving the use of the
mouth or
throat, which is performed by a person on the
penis of another person or oneself (
autofellatio). Oral stimulation of the
scrotum may also be termed
fellatio or
tea bagging.