Tending to clog or become blocked; heavy and sluggish; sticky or viscous.
From 'clog' (originally a wooden shoe, then meaning 'to obstruct') plus '-y' (adjectival suffix). The semantic extension from footwear to obstruction happened through the metaphorical sense of something being weighed down.
In British English, 'cloggy' describes anything that impedes flow—from literal mud clogging machinery to metaphorical situations where bureaucracy feels cloggy. It's a wonderfully practical adjective for describing things that don't want to move!
Complete word intelligence in one call. Free tier — 50 lookups/day.