hap-slap 

v. throwing something together in order to complete a task quickly; doing an incomplete job or skipping steps in the process of a task
adj. a negative term decribing something that appears to have been done in a hap-slap manner; appearing as unsound, rough, or incomplete
syn. half-hearted, half-ass, unsound, untrustworthy, unstable, slack, sloppy

These days, developers often hap-slap houses together to make a quick buck.

He did a hap-slap project for science class--that's why he got a D.

hap-slap by jaggedjinx March 6, 2012

hapslap 

The brain cells one depletes trying to convince a flat-Earther they’re wrong.

After an all nighter debating wankers on twitter, Pete’s hapslap made him forget which mustard he preferred.

hapslap by Trixie4 January 3, 2020