"overgrown with bushes," Scottish and northern English, mid-15c., from scrog (n.) "a stunted bush, a shrub-like plant" (c.1400), probably related to scrag "a lean person or thing" (1570s); cf. scraggly.
: All that scroggin' material out there
To do the sex act with or to; scrag, screw: You guys gotta scrog the sociable cervix (1970s+)
[origin uncertain; perhaps fr scrag]