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1.
The act of driving around town looking for couches people have put out for garbage, picking them up spacious vans, and loading them all into a singular persons backyard.

Small enough to move, big enough to be a nuisance for the recipient.
If I had a nickle for every time you couchbombed me I would have like twenty five cents you fecking pricks. I fecking hate couch bombing"
by MC. Kirbstomp July 18, 2010
 
2.
When you fill a small ziploc sandwich bag with Crisco (or your favorite lubrication) and place it between the cushions on the couch. You then proceed to fuck the couch as if it were a woman...but no need to buy It dinner first
by tnt May 01, 2003
 
3.
when you place a small plastic sandwich bag filled lotion (or the lubrication of ur choice) inbetween the cushions of a couch and then "have your way with it".........that is to say: to insert your penis in it and hump away.
Chan-ho: "wut the hell is couch bombing??"

Oobuku**click click**: "well..couch bombing is when you place a small plastic sandwich bag filled lotion (or the lubrication of ur choice) inbetween the cushions of a couch and then "have your way with it".........that is to say: to insert your penis in it and hump away."
by Brian "clint torres" loau September 05, 2004
 
4.
When somebody humps a couch for pleasure.
I just started to explore couch bombing, and to my suprise it felt good, so i continued.
by Phil johnsbury July 20, 2008