The difference between Irrumation and Skull fucking
When used as nouns, irrumation means vigorous oral sex, whereas skull fucking means aggressive deepthroat fellatio.
check bellow for the other definitions of Irrumation and Skull fucking
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Irrumation as a noun:
Vigorous oral sex; the active penetration of a mouth with a penis
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Skull fucking as a noun (vulgar, slang):
Aggressive deepthroat fellatio.
Examples:
"Some men consider skull fucking to be emasculating for the passive partner."