Green’s Dictionary of Slang

1. (also suckie) awful, terrible, unpleasant; also as adv. [link to suck v.¹ (7) but chronology appears to negate this; OED, quoting Paul Beale in DSUE (1984) suggests that which makes one suck in one’s cheeks with pain].

1934		B. Marshall Prayer for Living 52: As Sloan had said when he came out [from being caned], Tired Tim was laying them on pretty sucky.
1946		(con. 1912) B. Marshall George Brown’s Schooldays 6: They bend over you and lace you for nothing and it’s pretty sucky I can tell you [...] then they make you take down your bags and show your marks and if they don’t look sucky enough they make you bend over again.
1972		B. Rodgers Queens’ Vernacular 191: sucky blah, nowhere, yesterday’s news.
1989		P. Munro Sl. U.
1995		A. Heckerling Clueless [film script] Well, I am such a retard. When I was packing Daddy’s lunch this morning I gave him my lemon snapple, and I took his sucky Italian roast. Do you want it?
1998		Guardian 23 Jul. 24: Sometimes you’re reminded that there’s a fine line between the cynical and the just plain sucky.
2010		Globe Gaz. (Mason City, IA) 24 Sept. 11/4: What a suckie age to be — to young to be treated as an adult and to old to be considered a child.
2012		Salon.com 17 Nov. 🌐 Our sucky TV culture is all PBS’s fault.

2. toadying, sycophantic [suck up v. (1)].

1967–8		Baker et al. CUSS.
1988		M. Atwood Cat’s Eye (1989) 235: Simpsons Reps are sucky kids who appear in high school year books wearing blazers with crests on the pockets, looking clean-cut, and advertising Simpsons.