To use all 10 fingers to type on a keyboard at the same time.
dfhaskjfkjvcnawernsdhfkajh
by mastr July 21, 2003
To have no mercy.
Eg, there will be no mercy to your anus because I am merciless.
by ELGoR March 19, 2003
to be really good in bed; to go hard & fast; to have no mercy
"so how was it?"
"he was MERCILESS"
by hickz =] August 25, 2008
Strongbad-ism
1. To be very tall like quincy
Some people are very tall and merciless, quincy is destroying san atonio
by Are Bee September 23, 2003
To smoke and become extremely wasted to the point that no word said can be understood by a normal human being.
Oh, u are sooo Merciless
by mastr July 21, 2003
to b extremely good at bf that he doesnt need to prove it unlike genreaper who is like a fuck unlike merc who is leet...
Merc owns u gen.
by uknowwhohunny July 23, 2003

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